BMW is not the only car manufacturer to have engine bearing issues. It is just the most widely known of recent times because it has affected several of the world’s most popular BMW car chassis, the E46 M3, the E90 M3, S60 M5 and S63 M6. In BMW, the engine bearing failure affects the rod bearings. What are the big 3 for E46 M3? The BMW E46 M3 Carry the spare key inside the car, use the main key to operate the door locks, and when the car does not start, use the spare. If the spare never fails and the main key fails repeatedly, then you have a key issue and you will have to buy a new main key. If both keys fail, then the antenna ring is the culprit.
1 1 of 838 838. E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. Content on E46 Fanatics Forum is generated by its users. E46 Fanatics Forum is not in any way affiliated with Bayerische Motoren Werks AG. Discuss topics, ask questions, share knowledge specific to the E46 M3.
The crack from above turns through 90deg and travels right up. Every e46 has the same design flaw but its the harder drive, more powerful cars like the M3 that tend to suffer the most. All e46 M3 The Top 5 Most Common problems with BMW E46 Suspension are: ‘Judder’ while hard Cornering; Rear Squeaking Noise; Steering wheel shake at low RPM; Knock Sound while Steering; Front ‘Clunk’ Noise; BMW E46 Suspension. The BMW E46 is the fourth generation of the BMW 3 Series range manufactured between 1998 and 2005.

BMW E46 Expansion Tank Cracking. One of the primary areas of issue for the BMW E46 cooling system is the expansion tank. This is actually a very common issue on most BMW’s up until the late 2010s due to the material used for the tank itself. Both the BMW M52TU and M54 used a plastic expansion tank that had thin walls and was prone to damage.

heres my example: 1999 BMW 328i E46 sedan. Customer replaced battery and is now experiencing a parasitic drain that causes the battery to die after sitting over night. Ran the test (described above) Found that pulling the climate control fuse caused the light to dimm, therefore there is a problem in the climate control circuit.

Symptoms of a Cracked M50 Expansion Tank. Coolant leaking around the expansion tank. Low coolant levels, or having to replace coolant frequently. Engine overheating due to lack of coolant. Replacement options: the OEM tank is made of plastic, which is one of the biggest faults and reasons for cracking.

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Potential coil problems, post here. Some of us have probably heard of a possible problem with some of the coils in the 3 series. Audi had a bad rash of poorly made coils which required extensive coil pack changes in Audi's and Volkswagons. The 3 series is starting to show some of the same problems, or so this thread would like to see if that is so.

If the exhaust sprocket driver teeth are broken then that is the fault. If the teeth are still present then the solenoid pack is the fault. Although the BMW ETK (parts catalog) shows the vanos solenoid pack is discontinued, it is available under a new part number, 11-36-7-839-180, $600-$700. The BMW M3 is one of the most thrilling and one of the finest sports cars you can buy used. Terrific speed. Immense cornering capabilities. Well equipped. Road noise. Engine note a little rough
1198 posts · Joined 2006. #13 · Jul 8, 2010 (Edited) 325 and 330 aren't that different (I've had both). Both have the excellent M54 engine, 330 just has larger cylinder capacity. 330 does have a little more torque and acceleration but the 325 never felt inadequate in any way.
BMW E46 M3; BMW i3; Which SUV to Buy? BMW E39 M5; E90 3 Series; E46 3 Series; BMW Extended Warranty; Racing; Concepts; Rumors; but for places where rust is a problem, this is a no-brainer. A
Step 6: Drop the subframe. First, use an 18mm socket to remove the bolts mounting the trailing arms to the car. There are three bolts per side. After the bolts are loose, support the center of the subframe with a jack. Next, use an 18mm socket to remove the two bolts that mount the subframe to the chassis. bW1k.
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  • bmw e46 m3 common problems