Fuel Pump, Bosch - E34 525i/535i/M5, E32 735i
Replacement OEM fuel pump to restore proper fuel system operation. Replaces BMW part #16141178839
This OEM Bosch fuel pump fits E34 525i/535i/M5 and E32 735i/735iL models.
Few systems on your car go bad without warning but a fuel pump is one of them. Luckily the Original BMW fuel pumps last a long time and it might only have to be replaced once in a car's lifetime. The pump is either working or it's not. If power gets to the pump but no fuel is going through it's likely contaminated or old fuel clogging the pump internals. But most hard starting or no start issues can be traced to an electrical fault in the fuel system - a bad relay, fuse, or a related system that cuts power to the pump (EWS anti-theft for example). The fuel pump is often misdiagnosed so it's critical to have a professional diagnose the problem before throwing parts and money at it. Pumps that have been installed cannot be returned for a refund.
This is an OEM fuel pump manufactured by Bosch - the original supplier to BMW for this part, as well as many other fuel and engine components. As the OEM it meets all of BMW's original design, fitment, and performance requirements and is TUV approved. OEM parts are the best alternative to more expensive Original BMW parts because they are virtually identical without the inflated price tag. This part has a two year warranty.
E34 (89-95) > 535i
E34 (89-95) > M5 (91-95)
E32 (88-94) > 735i
E32 (88-94) > 735iL