What is the difference between The L6 And the 635?I was thinking its all cosmetic.I was told today that there was a 87 about 2 hours from here.Thinking about checking it out.

What is the difference between The L6 And the 635?I was thinking its all cosmetic.I was told today that there was a 87 about 2 hours from here.Thinking about checking it out.

Totally cosmetic. Has the full leather interior (incl. dash & headliner). You'll see a fair number with vinyl dashes since many/most leather ones warped. A replaced one is a plus in my book.

Totally cosmetic. Has the full leather interior (incl. dash & headliner). You'll see a fair number with vinyl dashes since many/most leather ones warped. A replaced one is a plus in my book.

Thats what I thought.Its on a car lot for $2500.I called the guy he said the body was nice but interior is not so good.Has 123000 on it.

Thats what I thought.Its on a car lot for $2500.I called the guy he said the body was nice but interior is not so good.Has 123000 on it.

Hmmm...if the body & mechanicals are right, I'd wonder what an interior swap would cost - Probably not as bad as you might think, though a lot of work for the dash swap. Worth checking out...

I'd see how much room he has on price.

How does the 3.5 liter hold up?Any thing I should look for?

I would be more interested in the history of the automatic transmission. If it has not been rebuilt or replaced recently, and the car has 123k miles, you could be in for an expensive repair.

I think the engines will last a very long time assuming they have had reasonable care. Frequency of valve adjustments, engine oil changes, and coolant changes are important to know. Water pumps, fan clutches, idle control valves and heater control valves seem to need attention every 60k miles or so.

I would be more interested in the history of the automatic transmission. If it has not been rebuilt or replaced recently, and the car has 123k miles, you could be in for an expensive repair.

...or a great excuse to do a 5-speed swap... :D

What is so bad about the auto trannys?

Something about overrevving in neutral that burns out some seals and cause the front clutch pack to burn up. Here is the fix:

http://www.bimmer.info/~rickm/trannyrepairs.htm

How does the 3.5 liter hold up?Any thing I should look for?

The M30 motor in the E24/E28, etc. is one of the most durable motors ever made by BMW (I'd argue it is the top motor). Get a good PPI if you're looking at it, but the motor is unlikely to be an issue unless it has been abused/neglected.