This part is listed by BMW as BMW part number 32411141243 (32 41 1 141 243) and is described as a Meyle Power Steering Pump for E30 325i, 325e, and 318i M10, E28 528e (after 9/1983), 533/535i (after 4/1984), E24 635CSi (4/1984-6/1987).
All PS pumps wear and eventually fail, mostly due to running with low fluid level, dirty fluid, or overheating. Failing PS pumps generally get noisy, causing groaning sounds when turning the wheel. Once the pump fails it will leave your car undriveable without the benefit of power assistance.
This is a newly manufactured pump, not a rebuilt. There is no core charge.
Fluid note: new pumps are designed with seals compatible with CHF11S or EHF. ATF or similar "Power Steering Fluid" should not be used. Mixing CHF and ATF is not recommended and may lead to premature failure of the seals, pump, or rack and void the warranty. A complete flush of the entire steering system is recommended. We strongly urge you to add the CHF label to the cap on your reservoir (BMW part # 71212122171).
This power steering pump is designed and engineered in Germany by Meyle to match or exceed the OEM part in every way. Meyle sees their products as an "OEM Premium" level of quality and value. Meyle emphasizes research, engineering, and testing even when reproducing an original design. Meyle parts are developed strictly in line with the guidelines and specifications of their own engineers in Hamburg, Germany and overseen and tested in the production process. Meyle parts are manufactured under ISO/TS 16949 standard, TUV approved, and have a four year warranty.
BMW Fitments:
3 Series
E30 (84-91) > 318i
E30 (84-91) > 325e
E30 (84-91) > 325es
E30 (84-91) > 325i
E30 (84-91) > 325is
E30 (84-91) > 325ix
5 Series
E28 (82-88) > 528e
E28 (82-88) > 533i
E28 (82-88) > 535i
6 Series
E24 (77-89) > 633CSi
E24 (77-89) > 635CSi