PeachParts Mercedes-Benz Forum - View Single Post

Jeremy5848 · #11 12-15-2008, 05:38 PM

Quote:

Originally Posted by bmeares

Does anybody have a picture of an installed block heater on an om602? I looked on both sides of the block--freeze plug on the passenger side and nada on the driver's side. There is some kind of sensor going into the oil pan on the driver's side with a wire coming off, but doesn't look like a block heater...

If in fact I find out that I don't have a block heater already installed, does anybody know where to get one for a 602, or am I going off to the junk yard for this one?

AFAIK, the 61x engines did not have a block heater installed at the factory but the dealer would install one for free in your first year of ownership; after that it was up to you.

OTOH, the 60x engines, including yours, should have had a block heater installed at the factory. Right side of the block, down low and covered with a plastic cap that unscrews. (The thing on the right side of the oil pan is the float switch for the oil level warning light in the instrument cluster.) Original purchasers of a car with a 60x engine could have the dealer install a cord for free. Again, it was a one-year offer.

The cord is available from a Mercedes dealer or from the aftermarket. The dealer's cord is at least 2X aftermarket price but includes a screw-in retainer and heat insulation for the cord.

For those whose engines didn't come with a block heater, the lower radiator hose version is much easier to install. After 20+ years, the plug that is in the block will be very hard to remove and there is anecdotal evidence that people have actually broken a piece out of the block while trying to get the plug out.

Jeremy