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BMW Repair Shops in San Diego

June 23rd, 2009 (12:46 am)

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BMW Repair Shops in San Diego

San Diego BMW Service Repair Mechanic
8680 Miralani Dr.
Suite #124
San Diego, CA 92126


Harloff BMW
Cunningham BMW
BMW of San Diego

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BMW Clutch Replacement, BMW Transmission, BMW Starter

June 23rd, 2009 (12:27 am)

One of the most difficult and complex jobs you can perform on your BMW 3-Series is a bmw clutch replacement. For that matter, replacing the clutch is difficult on just about any car. Fortunately, you're in the right place here, as I will guide you through the process step-by-step.
The first thing to do is to make sure that you need to replace your bmw clutch. On my E36 318is, I found that the clutch was slipping and couldn't move the car at all. At first I thought that there might have been a problem with the clutch master or slave cylinders, but upon further inspection, I couldn't find anything wrong. I looked underneath the car as a friend of mine repeatedly pushed in the clutch pedal. The slave cylinder and arm was appearing to work perfectly. That's the strange thing with bmw clutches - I have replaced quite a few over the years, and almost every time I take apart the old one, I have a difficult time figuring out what caused it to fail. Clutch components don't reveal their secrets too easily.

Anyways, there are a bunch of steps that you need to perform prior to replacing your BMW clutch:

Disconnect the battery
Jack up the BMW
Remove the bmw exhaust
Remove the bmw driveshaft
Remove / disconnect the shifter
With all of these tasks completed your bmw transmission should resemble

Now, move to the side of the transmission and unbolt the slave cylinder. Also, disconnect the backup lamp switch and detach its corresponding harness. Support the transmission with your floor jack and remove the lower transmission support bar (Figure 5). More details on this can be found in the Pelican Technical Article: Replacing BMW Transmission Mounts. Then, move your floor jack under your transmission and support it. We will now undo the bolts that hold the transmission to the engine.

This is where the going gets tough. First off, the bolts are special Torx head bolts which require special sockets in order to remove them. You need to apply a phenomenal amount of force to remove these bolts from the transmission - if you don't have the right tools, then you will not succeed. Get an external Torx socket set with sizes from E6 through E16, and you will be covered for all of the bolts on the car. These Torx bolts are used in applications where a good grip is required, and a lot of torque needs to be applied. The inset in Figure 7 shows two of the Torx bolts that you need to remove.

These bolts will be a huge pain to remove. See for details on the bolt locations. The ones on the side and bottom of the transmission will be relatively easy to remove - those aren't the ones that you need to be concerned about. The two bolts at the top of the engine near the cylinder head are very difficult remove - especially the one at the very top. The reason is that there is no room to easily reach these and apply any significant amount of force. In order to remove this top bolt, I used the following tool combination: 3/8 Torx socket, 3/8 1-ft extension, 3/8 extension u-joint, 3/8 3-ft extension, 3/8 to 1/2 adapter, 3-ft 1/2 breaker bar. This combination of tools was the only way I could reach the topmost bolt and remove it. I found that I could place a smaller tool on the bolt, but then I had no leverage to remove it. With this combination of tools, you basically need to hold the socket in place with your fingers and have an assistant pull on the breaker bar. Somehow I was able to use my feet to push on the breaker bar, but I really wouldn't recommend trying that.

If that top bolt wasn't enough, the starter bolts are even more difficult. Depending upon your year car, you may or may not have what is known as a threaded starter. If the starter housing is threaded, then all you need to do is remove the bolts from underneath the car. If your starter has non-threaded holes, then you need to place a wrench on the nuts that are on the opposite side of the bolts. This can be a near impossible task on the six cylinder cars. In order to reach these nuts, you will need to remove the six-cylinder intake manifold, which is a huge project in itself. I will be writing an article on this in the near future, so never fear. If you have a 318, the good news is that it is possible to squeeze your hand down into the engine compartment and reach those nuts. A photo of the nuts that you need to remove.

With the difficult nuts removed, it's time to pull the BMW transmission away from the rest of the engine. Make sure you didn't forget any more bolts on the back side of the transmission - there's at least one that holds on a metal shield. With the transmission supported on the jack, simply pull it away from the engine. If all of the bolts, hardware and accessories are properly disconnected, it should simply pull away. If you forgot something (very common), go back and double check everything. It should pull away quite easily - don't use the grip-of-death to pull it out - you could damage something. Work slowly and carefully at this point. Also make sure that the BMW transmission is well balanced on the jack - you don't want it to accidentally fall on you. Be sure that the transmission is well supported - don't let it hand on the center input shaft as that could cause it to bend. The bmw transmission pulling out of the car. Figure 11 shows the transmission removed from the car.

Now, you will want to remove the BMW pressure plate. On this particular car, I found that some of the pressure plates bolts had problems with rounding out when I went to remove them. If this happens, then dig out your trusty Dremmel tool and cut them off in about 1 minute. Don't waste your time trying vice-grips or other foolish methods - you can cut them off, and you don't need to worry about damaging the pressure plate because you're going to be replacing it anyways. When you're ready to remove the last bolt, grab the BMW pressure plate with one hand - it's easy for it to fall off when the last bolt is removed. The disc should also pop out when you remove the BMW pressure plate.

With the pressure plate removed, you should be able to see the BMW flywheel. This particular flywheel was used on a E36 318is with air conditioning. For some reason, the AC 318s used a dual-mass flywheel (probably to reduce vibrations from the high compression 4-cylinder engine). Unfortunately, this BMW flywheel can be expensive to replace - more on this later. The next step here is to remove the BMW flywheel bolts. You can use a socket and breaker bar, or simply zap them off with an impact wrench. I used a handy electric one here. With the bolts removed, your flywheel should be able to be tugged off of the crankshaft The BMW flywheel removed from the engine.

Let's talk for a moment about BMW clutch kits. With the exception of the flywheel, these kits contain everything that you need for your clutch job:

BMW Pressure Plate
BMW Clutch Disc
BMW Throw out bearing
BMW Flywheel bolts
BMW Flywheel seal
BMW Pilot bearing
BMW Throw-out arm pivot & clip
BMW Clutch alignment tool
The dual mass flywheel is two-piece and bonded together. This changes the natural frequency of the flywheel and reduces vibrations in the engine. For this particular car, I probably could have substituted a non-dual-mass flywheel, as I don't use the air conditioning system very often. The pressure plate up close along with some new pressure plate bolts. If you damaged yours removing the BMW pressure plate, you will want to replace them with new factory ones.

Now, let's turn our attention to the BMW transmission which we removed from the car. Begin by removing the throw-out fork. The fork is attached at one end with a small metal clip. Remove the fork from the transmission by disconnecting the small plastic pivot from the hole in the BMW transmission. The fork, new throw-out bearing, clip, and new pivot piece. Assemble the clip onto the pivot. Lubricate the whole pivot piece well with some white lithium grease.

Now, we'll work on the throw-out bearing guide tube. This is the small tube that the throw-bearing rides on when the clutch is disengaged. As the throw-out bearing slides back and forth on the tube, the have a tendency to wear out. A new guide tube and bmw transmission mainshaft seal. The old guide tube installed on the BMW transmission. Remove the bolts that hold the guide tube to the transmission. Remove the guide tube, and underneath you will find the mainshaft seal. Using a small screwdriver, punch a small hole in one of the indents in the surface of the seal, and pick out the old seal and remove it. Clean out the inside of the bore where the seal fits, and install the new one. Tap it in lightly with the end of an extension, taking care to make sure it doesn't go in cocked. The new seal installed, flush with the flange. Now install the new throw-out bearing guide tube, and apply a liberal coat of white lithium grease. Now, take the new throw-out bearing, place it on the throw-out arm, and attach the arm to the bmw transmission. Your throw-out arm is now ready for assembly back into the car. You might also want to clean up the input spline with a wire brush at this time.

If your back-up lamp switch is giving you trouble, now is the perfect time to replace it. Figure 40 shows the hole in the bmw transmission where the switch goes. Figure 41 shows the new switch. Figure 42 shows the new switch installed in the side of the bmw transmission. Pretty easy. Use a new sealing ring on the switch when you install it.

Now would also be an excellent time to replace your BMW starter, if you've been having problems with it. Access is very easy at this point - the removal process is somewhat difficult later on. The bmw starter is easily accessed. The only difficulty is disconnecting the wires from the opposite end. Before you even go near the bmw starter, verify that the battery is disconnected - the BMW starter has live voltage from the battery going to it at all times!

Now, it's time to turn our attention back to the flywheel end of the engine. We'll now replace the flywheel pilot bearing and the flywheel seal. The pilot bearing holds the transmission input shaft in place and aligns the transmission up with the crankshaft. To remove the flywheel pilot bearing, you may need a bearing puller. Place the puller inside the bearing and use a socket on the puller tool to slowly remove the bearing out of the crankshaft. On my 318is, I used the bearing puller, only to find out that I could have reached in there with my pinky finger and pulled the bearing out. Try pulling it out by hand before you resort to using the puller. The new bearing should fit easily inside the hole in the crankshaft. Use a deep socket to evenly tap in the bearing.

Now, using a screwdriver, puncture and remove the flywheel seal. Be careful not to damage any of the side surfaces where the seal mates to the engine case. Take your new seal and coat it with a light touch of Curil-T. Then install it onto the engine, taping lightly around the edge with the end of a 3/8 extension. Tap lightly and carefully - make sure that the seal doesn't become cocked in its bore. Clean up the left over sealant.

Now we're ready to reinstall the flywheel onto the engine. Always use new flywheel bolts, and have your flywheel resurfaced at a machine shop if you are planning on reusing it. Install the new flywheel onto the engine. Install the new flywheel bolts and torque them down. You must use a torque wrench and a flywheel lock to tighten the flywheel. I use a simple flywheel lock that is basically a strip of metal with two large slots in it. This allows you to attach the lock to a bolt affixed to the engine case, and one affixed to the flywheel, where the pressure plate bolts normally mount. This inexpensive lock works great on almost any car. With the lock in place, torque the bolts. The flywheel installed with all the bolts properly tightened to the proper torque.

With the flywheel mounted, now take your clutch alignment tool and place it in the center of the pilot bearing. Install the clutch disc. Then install the pressure plate onto the flywheel, compressing the clutch disc. Use new pressure plate bolts if you damaged them when you removed the old pressure plate. When the pressure plate is tightened down to its proper torque, remove the alignment tool. The disc, pilot bearing and pressure plate should all be aligned.

Balancing the bmw transmission on your jack, mate it back up with the engine. Be careful not to let the transmission mainshaft support any of the weight of the transmission - keep it balanced well on your floor jack. You may have to play around with the height and rotation of the transmission to get it to line up well with the engine (Figure 64). Once you have everything aligned, reattach all of the Torx bolts that you removed. Remember to use a wrench on the nuts in the bmw engine compartment if your starter isn't threaded through.

Reattach your slave cylinder, the backup lamp switch, the driveshaft, and the exhaust. At this time, I also recommend that you bleed your clutch system.
BMW CLUTCH SAN DIEGO

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BMW Maintenance and BMW Tune Up Tips

June 18th, 2009 (11:37 pm)

bmw tune up san diego
Even with BMW's advanced computer controled engines you can still replace normal bmw maintenance parts and see improved bmw engine performance. Here are common bmw tune up parts you can replace usually with some basic bmw tools.

Ignition Parts
Spark Plugs - All BMW spark plugs should be replaced and checked every 30,000 miles for best performance.
Spark Plug Wire Set - Checked or replaced every 50,000 to 100,000 miles.
Distributor Cap & Rotor - These should be replaced and checked when the spark plugs are changed.
Oxygen Sensor - The O2 (oxygen) sensor should be replaced at 60,000 mile intervals. A defective oxygen sensor drastically changes engine performance, fuel mileage and can damage your catalytic converter.
BMW Filters

Oil Filter - Changing your oil and oil filter is the most important maintenance procedure. Oil filters are easy to replace and help prevent unnecessary engine wear. You should change your oil and filter every 3000 miles.
Air Filter - Air filters should be replaced every 20,000 miles but more often if you drive in dusty areas. Take your air filter out and look at it, if its dirty replace it.
PCV Valve - The PCV breather filter should be replaced every year or every 30,000 miles.
Fuel Filter - the fuel filter should be replaced regularly, if not the fuel flow to the engine will become restricted, resulting in stalling, loss of power and hard starting. BMW experts recommend this filter be changed every 30,000 mi.
Transmission Filter - BMW transmission filters should be replaced every 15,000 miles to extend the life of your automatic transmission.
Radiator Hoses and Belts

Radiator Hose - is often not checked very often. They should be checked every 6 months or so.
Belts - A/C, power steering, fan, water pump and alternator belts should be checked and or replaced every 15,000 miles.
Fuel Injectors

Fuel Injectors - BMW fuel injectors should be replaced every 100,000 miles. They have mechanical components that wear out and cannot be cleaned.
bmw maintenance san diego

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BMW Check Engine Light Due To Gas Cap Aftermarket Parts

June 18th, 2009 (11:21 pm)

A couple of weeks ago I received a letter from Jason, who was having problems with his bmw check engine light it was staring at him. He took it to a bmw mechanic shop which told him that he needed a pricey amount of work to replace a number of bmw parts in his EVAP system. Not completely convinced, Jason decided to wait a minute on the bmw repair to see if there was a different diagnosis, or to see if he could do the repairs himself to save some money. It looks like he did the right thing. After checking and rechecking all of the potential culprits, he realized that his oem bmw gas cap had been replaced at some point with an aftermarket locking version. He threw out the locking cap, replaced it with an original equipment bmw gas cap, and what do you know? No check engine light. This is a great example of somebody using their head to save a serious amount of money. Way to go Jason!
bmw check engine light san diego

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BMW Oil Change by BMW Service San Diego

June 16th, 2009 (10:41 pm)

One of the most common tasks to perform is replacing your bmw engine oil. Frequent bmw oil change are supposedly the most important thing you can do to maintain and prolong the life of your engine. With the better oils that are available today, the requirement for frequent bmw oil service is diminishing. Even though BMW now recommends oil change intervals that are much farther apart than in the past, I usually recommend that you keep the changes under the 5,000-mile limit. If you don’t drive your bmw too often, you should change the oil at least once a year to keep things fresh.


The first thing you need to do is to make sure that you have everything that is required for the job. Nothing is more frustrating than emptying your oil, only to find out that you don’t have a replacement filter or enough oil. You will need an bmw oil filter, a wrench, a roll of paper towels, a very large oil pan or bucket, and between 4-7 quarts of oil. The E30 cars require between 3.5 - 4.2 quarts, and the bmw E36 cars require 5 quarts for the four-cylinder cars, and 6.0-6.5 for the six cylinder cars. You'll also need a 17mm or 19mm wrench to remove the drain plug from the bottom of the engine sump. Start by driving the bmw around, and letting it heat up to operating temperature. You want to empty your oil when it’s hot, because the heat makes the oil flow a lot easier, and more particles of metal and dirt will come out when the oil is emptied.
 
Once you get the bmw parked, place the oil pan bucket underneath the oil tank of the bmw. At the bottom of the engine sump there is a plug that is used for draining oil (Figure 1). Remove this plug carefully, and make sure you have a very large bmw oil pan—about 7-quart capacity—under it, with a drip pan under the bmw oil pan in case you underestimate. The oil will be very hot, and will empty out extremely quickly, so be careful not to burn yourself. There will be no time to grab any more buckets or oil pans, so make sure that the one you choose is big enough.
 
This is a good time to remove the bmw oil filter. You want to make sure that you remove the bmw filter with the oil pan still under the oil tank because the oil filter is full of oil, and this oil will have a tendency to drip down out of the filter into the tank and out the drain hole. On E30 cars, the filter is a complete unit with a outer metal housing. This filter should only be screwed on finger tight, but you may need a filter wrench to remove it. If the filter is really on tight, you may need to resort to more drastic measures. One sure-fire way to get the oil filter off is to poke a long screwdriver through it and use the handle of the screwdriver for leverage. It doesn’t matter that you are destroying the filter, because you are going to install a new one. Be aware, though, that this method will leak oil out of the filter into your engine compartment, so have some paper towels handy.
 
On the E36 cars, the filter is a cartridge-type filter which is contained within a metal oil filter housing (Figure 2 or Figure 3). There is a cap that is located on top of the housing (it may require a small socket, or a large one depending upon your year). Remove the top (Figure 3 or Figure 4), and underneath you will see the cartridge filter. Simply remove it from the oil filter housing (Figure 5, Figure 6, Figure 7, Figure 8 and Figure 9). Have plenty of paper towels on hand, as oil will spill from the filter if you're not careful.
 
While all of your oil is draining, take the plug from the engine, and carefully clean it with a paper towel. The plug at the bottom of the engine is magnetic, and attracts all the little bits and pieces of metal that get trapped in the engine oil. When both plugs are clean, replace them in the car with new metal gaskets around the plugs. If you don’t use the gasket, they will leak oil. Torque the two plugs to 25 Nm (18 ft-lbs) for the 17mm or 60 Nm (44 ft-lbs) for the 19mm drain plug.
 
Now head back into the engine compartment, and install the new oil filter (E36 Filter - Figure 10). For the E30 cars, install the oil filter with the seal wet—wipe a small bit of oil on a paper towel, and use it to make sure there is oil on the seal all the way around the filter. Screw on the filter and make it snug tight. No need to use the iron grip of death when tightening the oil filter—these don’t have a tendency to leak.
 
For the E36 cars, you should clean out the inside of the oil filter housing before installing the new oil filter cartridge. In your oil filter kit, you should also have two o-rings and a replacement copper gasket for the long bolt that attaches the top of the housing (early E36 cars). Replace the o-ring at the bottom of the long bolt (Figure 11), and also replace the large o-ring underneath the canister top (Figure 12). Insert the new filter into the housing (Figure 13), and reinstall the long bolt and the canister top. Tighten the top of the canister to 25 Nm (18 ft-lb).
 
Now it’s time to fill up your BMW with motor oil. A lot of people aren’t really sure what motor oil to use in their car. Traditionally, the characteristics of motor oil were linked closely to its weight. Heavier-weight oils protect well against heat; lighter-weight oils flow better in cold. In general, if you live in a cold climate, you should use a 10W-40 or similar oil. This oil is a 10-weight oil that behaves and protects against heat like a 40-weight oil. In warmer climates, you should use a 20W-50 oil. This oil doesn’t flow as well at the colder climates, but gives an extra “edge” on the hotter end.
 
The question of whether to use synthetic or traditional “dinosaur” oil often comes up among car buffs. Consumer Reports (July 1996) ran an extensive test on the two types of oil, altering amongst many different brands. The testers installed freshly rebuilt engines in 75 taxicabs, and then ran them through the harshest conditions on the streets of New York City. Placing different brands, weights, and formulations in the cars, they racked up 60,000 miles on the engines, tore them down, measured, and inspected the engine components for wear. The oil was changed at 3,000 miles in half of them, and the rest were changed at 6,000 miles. results: regardless of brand, synthetic or dino, weight, and oil change interval, there were no discernable differences in engine component wear in any of the engines. Their conclusion? Motor oils and the additives blended into them have improved so much over the years that frequent oil changes and expensive synthetics are no longer necessary.
 
Still, some people swear by synthetic oil. In practice, I don't recommend using synthetic oil if you have an older car with old seals in the engine. I live by a bmw oil service san diego shop so I tend to pick up my bmw engine oil there. There have been many documented cases in which the addition of synthetic oil has caused an otherwise dry car to start leaking. If you own an older BMW that doesn’t have fresh seals in the engine, I would stick to the non-synthetics.
 
Fill your oil tank from the oil filler hole in the top of the valve cover (Figure 14), located in the engine compartment. Add about 4 quarts to the engine, and check the dipstick. Continue to add about a half a quart at a time and keep checking the dipstick. Fill it up until it reaches the top mark of the dipstick - the engine oil level will automatically lower when the oil filter fills up with oil. Make sure that you put the oil filler cap back on the top of the valve cover, otherwise, you will end up with a messy engine compartment when you drive away.
 
Now, start up the engine with the hood open. The oil pressure light should stay on for about a second or two and then go out. Hop out of the car and look at the engine compartment, then take a quick look underneath the car. Verify that there's no volumes of oil seeping out of the engine. Now, take the car out for a drive and bring it up to operating temperature. Shut the car off and then recheck the oil level (careful, the car will be hot). At this point, I like to top the oil off at the top point on the dipstick. Make sure that you dispose of your old oil at a respectable recycling station.
bmw oil change san diego

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BMW Brake Pads / BMW Brake Disc Rotor Installation Guide by BMW Repair San Diego

May 10th, 2009 (12:00 am)
current mood: creative

BMW Parts that would be needed

BMW Brake Pads
BMW Brake rotors
BMW Brake Pad sensors
BMW Brake disc set screw
Anti rattle clip
Anti Squeal Compound
Anti Seize spray
Tools that would be needed

Jack to lift up your BMW
Socket (to remove tires)
Allen Wrench (to remove the set screw)
C-Clamps
Brush or air compressor (to clean as you go along)
Rubber hammer

BMW Brake Repair Installation Guidelines

Prepare all parts and tools, make sure you have all parts before you begin the bmw brake job.
You may want to loosen the wheel lugs prior to start just in case they are "frozen" if that is the case, just bring your BMW to the local tire/gas station to have it loosen and of course tightened back up.
Now you are ready to go! Jack up your car (remember to follow ALL safety instructions by the vehicle manufacturer.
Use the sockets to remove the wheel and remove the anti rattle clip. On sides with the brake pad sensor, remove the connection to the brake pad.

Remove the Caliper guide bolts (caps too)

Remove the Caliper (if the caliper does not slide right now, which is usually the case, use the C-clamp to clamp the solid part of the caliper to the face of the rotor, the caliper will be easily removed)

Provide support to the caliper so that it does not hang on its own and thus destroying the brake hose. (try to use something better than what is picture to hold the caliper!)

Remove the brake pads from the caliper
Remove the set screw and remove the brake rotor carefully (its heavy!). A rubber hammer maybe needed as the rotor maybe seized to the hub,
Clean up the area around the wheel hub flange with the air compressor or just a simple brush.
Position the new rotor onto the wheel hub and install a new set screw to hold the rotor in place.
Clean up the rotor with a clean cloth or brake cleaners
Install the mounting bracket for the caliper.
Push the caliper piston using a C-clamp into the caliper and make sure its in place.
Install the brake pads into the Caliper, installed the inner pad then install the outer brake pad.

Once this is done, remember to install the new brake pad sensor and connect it to the brake pad.
Position the caliper over the brake disc, install the guide bolts and the anti rattle clip.
At the mounting location, apply some anti seize compound, do make sure that it does not get onto the rotor surface (where the brake pad grips)

Make sure everything is in its proper location and secured.
Reinstall the wheel and lower your BMW back down.... Work on the other wheels and follow the same guidelines....
Once done....TAKE SOME NICE PICTURES :) and you just saved yourself a few hundred bucks. If bmw brake warning light is on stop by your local bmw repair shop to have the dtm removed.

bmw brakes san diego

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