Common E39 problems
These cars are getting old now and some common issues keep coming up. Here’s a list on what to look out for:
Water pump and thermostat: The cooling system can wear out with time so keep an eye on your engine temperature gauge to spot overheating problems.
Window motors: With time, debris can accumulate in the window tracks and eventually slow down / preve…
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e39 facelift:
Nice to see the forum-like setup for these car-specific communities. Might I add…
-Vanos seals wear out on M52TU and M54 models (525i, 528i, 530i)
-Valley pan gasket on M62 models (540i)
-Vapor seals on doors tend to leak due to bad sealer from the factory, leading to soaked carpeting and carpet liner
-DISA valve fails, causing decreased power, squealing sound in engine bay (M52/TU, M54)
-Tailgates tend to rust on tourings
-Front cupholders break
-A/C condensation accumulation leads to nasty smelling air
And for anything else, PLEASE check out this link, it is your best friend if you own an E39. http://www.bimmerfest.com/forums/showthread.php?t=165198
P1192
Cooling
Rust
Auto level adjuster and sensor
Oil comsumption