Oh man, this cant be good... COOLANT LEAK M103 - Page 2 - PeachParts Mercedes-Benz Forum

Mike Murrell · #16 07-19-2006, 02:05 PM

Quote:

Originally Posted by mad1

Have you tried pressure testing your cooling system for leaks?

The ONLY way in many cases to know where it's coming from.

Mass-marketer auto parts stores like Auto Zone will rent the tool for this task.

rickpark · #17 07-19-2006, 02:08 PM

Give it a few days and get a blacklight flashlight or UV leak detector (same thing) to see if you can see any glowing residue which would indicate the point(s) of leakage.

Something like this.

Mistress · #18 07-19-2006, 03:27 PM

Quote:

Originally Posted by softconsult

My '92 M103 has had a headgasket leak for 130,000 miles. It used to be a combination of coolant and oil. Then I switched back to dino oil from Mobil 1 and the oil portion mostly stopped. I can crawl under the car with it idling and see the leak. It is very minute, but kind of spits from on point about
2/3 rds of the way back from the front of the block on the passenger side.
Requires topping off the coolant about every 400-500 miles. I have no oil in the coolant reservior.

Crawl under there with the engine running. Shine a strong flash light around the engine. Maybe get a telescoping mirror. I can't believe that you won't find it. Look at the bell housing of the transmission. Do you have any oil dripping on it.

Steve

Please wear goggles of some sort....