Is there a simple way to check if the odometer gears on the cluster work without taking it all apart? There's a M42 engine/tranny in a cabrio that I want to get and the odometer indicates around 165k. That's way less miles than the tired, oil leaking M42 I currently have but I want to verify if that mileage is accurate before pulling the trigger.
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How to check if junkyard odometer works?
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No, BMW ended the machanical ODO's with the e21. E30's have a "speed sensor" on the diff, that drives a motor inside the cluster. Best guess would be a VIN and a car fax to look for that. Even then, it's a crap shoot.Originally posted by Matt-Bhey does anyone know anyone who gets upset and makes electronics?
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Even if the odometer gears are good, the electronics commonly fail. We see it many times per week.Owner - Bavarian Restoration
BMW and European Electronics Repair and Restoration
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Originally posted by george graves View PostDiff sensor you mean? Just curious.
Originally posted by e30sh View PostIf trip odo reads all 0's, odds are it's broken.
Look at the seat / steering wheel for wear. That's good for +/- 100k lol
Do the easy first...check the plugs. If they look ok, pull the valve cover and check for pointy cam sprockets / sludge etc.
Most yards off some type of warranty.Owner - Bavarian Restoration
BMW and European Electronics Repair and Restoration
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Originally posted by Gregs///M View Post
The trip can read zero whether or not the odometer is good or bad. Someone could have just reset the trip, has nothing to do with good or bad gears.
My point. What are the odds of it ready exactly 0 if it was working? I've seen a lot of e30's with broken odo gears and most have trip odo's at all 0. I assume people push the reset button after it stops thinking that will magically make it start working again.
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