Any special considerations for towing a W123? - Page 2 - PeachParts Mercedes-Benz Forum

tangofox007 · #16 12-29-2011, 08:36 PM

Quote:

Originally Posted by pwjeep

If a car is towed with the rear wheels on the ground the transmission secondary pump will start to rotate the transmission and then engine.

Isn't there an easy and convenient way to prevent the transmission from rotating the engine?

vstech · #17 12-29-2011, 08:37 PM

Quote:

Originally Posted by tangofox007

Isn't there an easy and convenient way to prevent the transmission from rotating the engine?

... evil, you're just evil...

Orv · #18 12-29-2011, 09:50 PM

Quote:

Originally Posted by pwjeep

I understand that there is a secondary pump in the transmission that will allow you to push or pull start W123 or W126 vehicles. If a car is towed with the rear wheels on the ground the transmission secondary pump will start to rotate the transmission and then engine.

I think this would only happen if you neglected to put it in neutral first. The pull-starting instructions say to leave it in neutral until you reach 30 mph, then shift into 2 to crank the engine.

The usual problem with towing an auto trans car with the rear wheels on the ground is without the engine running the front pump doesn't run, so the bearings in the transmission don't get sufficient lubrication.

NH82W123 · #19 12-31-2011, 10:01 AM

Had to postpone the towing until next week, but the plan will be to ask the tow company to send a flatbed/rollback truck so there are no wheels on the ground.