Summary of money-saving repair experiences for classic BMW common problems.
Regardless of the brand, there are all sorts of problems. BMW, for one, has some fairly classic common problems, which are summarized below, along with cost-effective ways to deal with leakage.
leakage of oil
For a certain number of years, such as more than 10 tens of thousand of kilometers the BMW car is prone to, this is mainly the corresponding gaskets, seals, oil seals, etc. Appeared aging damage caused by, do not come up to change the assembly.
Oil burning:
For old BMW cars, such as the N-series engine models, oil burning is generally caused by damage to the valve oil seal, a separate replacement of this small thing on the line. For the B-series engine, currently hear most is the B48 engine oil consumption is fast, there are 2 main reasons, one is the cylinder head cover cracks; the second is the oil filter base damage, for the oil filter base, the current online has been upgraded version of the aluminum alloy material.
B48 burst water pipe:
The reason is that the engine is in some working conditions, the vacuum mediation valve is closed, and the coolant flow can not cylinder head, so the cylinder head’s local temperature is too high, which causes the water pipe cylinder head measurement of the joints to be easy to high-temperature aging. In addition, in the process of engine operation, shaking will produce stress in the joints and water pipes, and will also accelerate the fatigue aging of plastic joints. This same improved and reinforced water return hose is available for purchase, with reinforced nylon plastic, silicone, and aluminum alloy fittings for 1 or 2 hundred.
Air conditioning vent panel damage
Some owners may have spent 1,000 or 2,000 to replace the original assembly, the actual only need to replace the vent panel alone can be, buy parts online on the price of 100-200, do-it-yourself ability to get it done.
The splitter box is damaged
Generally, internal friction plate erosion, replacing the friction plate is good.
X5/X6 handbrake damage
This situation is generally caused by the negative pole of the internal motor fused, welded, the most direct replacement of this small motor, a few hundred dollars to get it done. So, before spending a few thousand dollars to replace the assembly, it may be worthwhile to double-check this motor.
The inner door handle, window button area sticky
This is generally used for a long time after the parts aging degumming led to go online to buy improved parts installation, a set of a few hundred dollars to get it done.
Vacuum pump oil leakage
Generally, internal seals or check valves are damaged, online purchase of related parts replacement is good, the parts cost 200 or less.
Headlights often light or window lift failure
If the check is FRM module problems, generally caused by data loss, do not rush to change the assembly, first do data recovery and then see.
oil cap leakage
Go online to buy an improved oil cap gasket. If the improved type does not work, you can measure the inner diameter and outer diameter of the car oil cap gasket, and then go online to buy 3mm thick fluorine rubber gasket, some stores can customize processing.
The instrument prompts “Please prevent the vehicle from sliding”
This is usually the gear lever position sensor spring breakage, resulting in a gear position information reading error. The way to save money is to go to the Internet to buy an improved type of spring, look for a repair store to disassemble and replace, almost spend disassembly the gear handle the labor cost can be resolved.
BMW bypass valve rattling
For the N-series engine, generally is the bypass valve cover plate vibration caused by the replacement of the improved cover plate is good.
