1991 BMW 525i Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1991 BMW 525i
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1991 BMW 525i ProblemsWater Pump May Develop Coolant Leak
The low coolant light may illuminate and/or the engine may overheat as a result of a coolant leak from the water pump. The leaking pump will require replacement and the entire cooling system should be inspected for leaks as it is not uncommon to find multiple leaks on higher mileage vehicles.
Overheating can cause severe engine damage. If the engine begins to overheat it is recommended to stop at the first available location and have your vehicle towed to a repair shop.
The front thrust rod bushings—also referred to as tension strut bushings—are known to fail occasionally. The oil-filled rubber mounts weaken and crack over time, causing a mushy road feel and shuddering in the steering wheel when going over bumps. These worn bushings should be replaced.
A creak or squeak can be heard from the top of the front or rear doors. This noise is most noticeable when the windows are fully up. The noise is caused by the decay of the flocking material on the door seals. New door seals, Teflon tape, special lube, or a combination of all of these may be needed to eliminate the noise.
1991 BMW 525i QuestionsWhat would it cost for a tensioner pully (1 answer)
Greg's Auto...Question about total check of coolant system outlined yesterday in my request for help...I replied today to your suggestion about hydracarbons in system...I ment to
ask you about the lack of heat up to the system's Rad return
hose. System totally in play...ran engine to o...