when doing the motor mounts can i expect the engine to move or does this rarely happens?

dont fully understand the question but.... the engine has to move, and be raised to allow access to the motor mounts. on my 420sel that meant using the oil pan as the jack point using a 2x8 between the floor jack and the pan. only had to raise the engine about 2 or 3 inches. Its been a while but if I remember, I also had to pull the fan shroud and possibly the radiator so the fan would not dent the radiator as the engine was raised.

ok what i meant was does the engine slide backwards while jacking it up. i have read some people need someone else on a pry bar to bolt the bottom bolts back in.

When I did mine, I did it when I had both the cylinder heads removed, so I had good access from above and below. I lost a good amount of skin on my knuckles trying to get the bolt to align on the second mount. I ended up using a pry bar to get it to align back up.
Its probably worth getting a helper to pry the engine back into alignment from on top, while your underneath taking care of the bolt.
You shouldn't need to remove the radiator, just unclip the shroud and remove the 4 10mm headed bolts holding the fan to the waterpump, and take the fan out of the way. You dont need to remove the shroud, just have it loose and the fan should slip past.

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Ben

'85 500 SEL
'85 928S2
'88 560 SEC
'90 750i

YOU HAVE TO RELEASE THE ENGINE FROM THE BELL HOUSING WHICH IS CONNECTED TO YOUR TRANMISSION VIA several bolt around it, then take out your fan shround, this is the part that looks like a big scoop for air from the inside direction of the radiator. release bolt on the engine support, then use 2 crocodile jack with a peice of wood to jack up the engine. You'll have full access of the rubbber engine support with out having to destroy any other parts while in a process to fix one.

I've never had to remove the engine from the transmission bell housing... Remove the fan shroud yes..

That aside, what everyone else has mentioned should have you doing fine.

Just take your time, do your best to clean all the threads when re-assembling/use anti seize etc..

Have fun;-)

Jonathan

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Blue Ridge Mercedes
Jonathan Hodgman
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Enthusiast Service, Restoration & Tuning.
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