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Old 12-07-2001, 09:22 PM
psfred psfred is offline
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Join Date: Aug 2001
Location: Evansville, Indiana
Posts: 8,150
Check coolant temp -- should be 87 C or so. If not, bad thermostat. Easy to fix.

If the temp is OK, you have a bad temperature sensor -- this is why your aux fans won't run. Get it replaced, again easy. Could have a broken wire, too, althoug this is rare with a Mercedes (NOT with Volvo, though!).

You are running in open loop startup mode -- will kill your milage, your ox sensor, and your catalyst. Catalyst is expensive!

You may also have a bad fuel distributor if you have the older fuel injection system -- common problem. I don't know when MB changed to the LH type from the K-Jetronic. If the distrubutor is bad, it will be expensive to fix, and my mechanic has been having fits getting good replacements -- put three on a car before he got one that lasted more than 5000 miles! If it is bad, you will be trailing black smoke!

Peter
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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!
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