redl1nerpm said:
Im looking at e36 M3's and E34 M5's. Ive always liked 5's and may prefer the M5. Ive been doing some searching about buying one and have learned a lot but still have a few questions. Many that Ive found have high mileage (150k miles+). I read the engines go 200k. So will I need to overhaul the engine at that point or may it last a lot longer? Also I read that the timing chain or tensioner goes bad around 150k? Is there any other things like this to watch out for?
It all depends on care & use my friend.
The 3.8 has gained a rep for being more fragile..
Its a little more stressed mechanically than the 3.6 but the reality is that the abuse given these cars is not often matched by the care & attention.
These engines are capable of 400,000 km with attention to chain tensioners chain & sprockets etc.
An oil pump change when the sump gasket lets go is a good idea which is usually around 150,000 kms.
Water pumps require inspection & change say every 100,000 kms.
These are guides but what will surely shorten the life of this engine is aftermarket eproms with increased rev limits.
If you find a car that the owner has chipped, ask for all the details including serial no & go find what the chip has been programmed to do.
Chips from Dsylva & Conforti are top drawer for these vehicles.
Anything else need close inspection.
Personally, I have prepared myself for a full rebuild around the 320,000 km mark & the financial burden that will bring so that is still a couple of yrs away.
If you can, buy a car from a board member. Those on the board become clued up very quickly & remember, theres nos such thing as a cheap bargain with any M5.
Farrell