E-Class (W124) 1984-1995: E 260, E 300, E 320, E 420, E 500 (Includes CE, T, TD models)

changing waterpump??

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Old 02-24-2008, 01:41 AM
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1991 300E 63K miles in Ice Blue
changing waterpump??

I am fairly certain my waterpump is leaking. We pressurized the system and it is dripping off the oil pan. Took off air cleaner and looked with mirror but could not actually see the leak but it appears to be from behind the pump...

I searched the forum but found not writeup on how to change the waterpump.
Has someone has done this and posted any instructions?

All the best,

DP
Old 02-24-2008, 10:50 AM
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1995 E320 SE, 162,000 Miles (Sold)
Originally Posted by docpaul
I am fairly certain my waterpump is leaking. We pressurized the system and it is dripping off the oil pan. Took off air cleaner and looked with mirror but could not actually see the leak but it appears to be from behind the pump...

I searched the forum but found not writeup on how to change the waterpump.
Has someone has done this and posted any instructions?

All the best,

DP
This is from the repair manual.
Attached Files
File Type: pdf
20-2100.pdf (63.7 KB, 143 views)
Old 02-24-2008, 11:36 AM
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1991 300E 63K miles in Ice Blue
doesnt look too bad...

Thanks for the file, will give it a shot...
Any advice on sealant?

Permatex RTV blue silcone used on my BMW seemed to work...
Old 02-25-2008, 11:00 AM
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MB 300E
Originally Posted by docpaul
I am fairly certain my waterpump is leaking. We pressurized the system and it is dripping off the oil pan. Took off air cleaner and looked with mirror but could not actually see the leak but it appears to be from behind the pump...

I searched the forum but found not writeup on how to change the waterpump.
Has someone has done this and posted any instructions?

All the best,

DP

Just did mine, and it's not bad at all.
You will need the right tools, 3 of the 4 bolts that hold the pump are torx.

I had to take the strut out that holds the engine to get to the bolts.
Took about 4.5 hours.

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