How to save money when replace a failure shock absorber on BMW
We often hear BMW owners mention: BMW 730 shock absorption collapsed, BMW 5 Series gt air suspension leak, BMW 750li rear air spring leak, BMW 730 rear shock absorber air leak, BMW 750 rear strut shock leak and other problems with the shock absorber.
After the shock absorption collapsed, first check that there is nothing wrong with the air suspension compressor pump. If there is nothing wrong with the compressor pump, The problem should be the shock absorber leaking. The owner of the shock absorber may be thinking about replacing it. However, the original BMW 730 shock absorber is about 20,000 Yuan, according to the manufacturer’s technical requirements. The 4S shop definitely recommends you to change whole shock absorber. it is best to change the two rear air suspensions, plus the 4S shop’s working hours and fees, you may have to pay 30,000 Yuan or more. Or you have to go to a repair shop and replace the original refurbished shock absorber, it will cost 8000-9000 Yuan. But now the best advice is to go to a shock absorber repair factory to repair the shock absorber. There was no shock absorber repair service in China before, but today there are manufacturers in China like KAIBINTECH who have the advanced technology to repair the shock absorber.
Air leakage of shock absorber generally occurs in the airbag part. If the leakage is serious, the sound of air leakage can be heard. If you are not sure, you can remove the shock absorber, inflate it and put it in the water tray to see if there is a leak. The airbag shock absorber is mainly composed of a damping movement (spring hydraulic pressure part) and an air spring air chamber (airbag part). The combined effect of the two makes the airbag shock absorption more comfortable than the ordinary spring hydraulic shock absorption. Because the airbag shock absorber is installed between the chassis and the body of the car, it directly bears the weight of the body and is exposed to the air for a long time, the working environment is very harsh. After using the air shock absorber for 6-8 years, some of the rubber parts will lose their original strength and performance to a certain extent, which will cause shock absorption and air leakage. This is a normal phenomenon.
Damping airbags cause gas leakage due to aging. We only need to replace the airbag rubber sleeve(rubber bladder), steel rims(crimping ring), strut mount(rubber bushing), suspension buffer stop and aluminum cover. The maintenance cost is about hundreds Yuan, which is more cost-effective than replacing with new shock absorptions, even the original shock absorption has no warranty while Kaibintech air suspension repair kits has one year warranty.