Does anyone have a good source for rear main seal installer tool?
Thread Starter
MBWorld Fanatic!
Joined: Aug 2011
Posts: 3,428
Likes: 288
From: New Zealand
Does anyone have a good source for rear main seal installer tool?
I am slowly looking for all the bits I need for rear main seal replacement. MB wants $400-500 for the tool.
$457 genuine tool https://www.ecstuning.com/b-genuine-.../111589084300/
$325 aftermarket but looks good quality https://www.ebay.com/itm/182765517842 I have their fuel pump lock ring tool which is solid.
$150 https://www.ebay.com/itm/32371271498...MAAOSwmetcdkkF This one was fairly cheap from China but the quality might not be the best. They don't show the inside of the tool but the outside doesn't have the best finish and I presume it needs to be perfect on the inside so as not to tear the seal. Any thoughts?
Also can I do this job on jackstands? My jack can raise the car to 600mm (23"). I will buy a trans jack as well.
Dumb question, does the oil need to be drained or does it sit below the seal level?
$457 genuine tool https://www.ecstuning.com/b-genuine-.../111589084300/
$325 aftermarket but looks good quality https://www.ebay.com/itm/182765517842 I have their fuel pump lock ring tool which is solid.
$150 https://www.ebay.com/itm/32371271498...MAAOSwmetcdkkF This one was fairly cheap from China but the quality might not be the best. They don't show the inside of the tool but the outside doesn't have the best finish and I presume it needs to be perfect on the inside so as not to tear the seal. Any thoughts?
Also can I do this job on jackstands? My jack can raise the car to 600mm (23"). I will buy a trans jack as well.
Dumb question, does the oil need to be drained or does it sit below the seal level?
MBWorld Fanatic!
Joined: Jul 2012
Posts: 4,510
Likes: 1,513
From: Orbiting the planet
This place is a joke.
You must replace the rear main plate, which is what leaks due to the silicone hardening over time. You install the new seal in the new plate before you install the assembly. Skilled mechanics can use a mallet to install the seal. The new seal comes with a plastic tool that guides it over the crankshaft when installing it together with the plate. There's more to it, but it's a lot to type. Try searching here, I'm sure it's been covered in detail. This job will suck on jackstands. Indy shops usually charge around $500 labor, well worth it if you don't have a lift.
Last edited by E55Greasemonkey; Oct 11, 2021 at 10:14 PM.
Thread Starter
MBWorld Fanatic!
Joined: Aug 2011
Posts: 3,428
Likes: 288
From: New Zealand
You must replace the rear main plate, which is what leaks due to the silicone hardening over time. You install the new seal in the new plate before you install the assembly. Skilled mechanics can use a mallet to install the seal. The new seal comes with a plastic tool that guides it over the crankshaft when installing it together with the plate. There's more to it, but it's a lot to type. Try searching here, I'm sure it's been covered in detail. This job will suck on jackstands. Indy shops usually charge around $500 labor, well worth it if you don't have a lift.
112-997-02-46 rear main seal
910143-006001 I believe are the bolts for the plate, I think 11 are needed
124-990-22-01 I think these are the flywheel bolts, 8 needed
112-011-02-08 seal holding plate
003989982010 MB sealant
Transmission mount
Several liters of fuch titan, drain plug, gasket, filter, pan seal. Incidentally I just did a pan fluid change today.
The only parts I have yet to work out are the transmission bush and clips I have seen mentioned and any parts needed for the trans fluid lines.
I understood the white plastic part is not supposed to be used for installtion. The seal is supposed to be installed into the plate only after the plate has been sealed and bolted to the block. To me it looks like the installation tool uses two of the crank bolt holes to attach?
MBWorld Fanatic!
Joined: Jun 2020
Posts: 2,138
Likes: 871
04 E55 AMG (totaled), 07 S550 4Matic, 14 E63S
You must replace the rear main plate, which is what leaks due to the silicone hardening over time. You install the new seal in the new plate before you install the assembly. Skilled mechanics can use a mallet to install the seal. The new seal comes with a plastic tool that guides it over the crankshaft when installing it together with the plate. There's more to it, but it's a lot to type. Try searching here, I'm sure it's been covered in detail. This job will suck on jackstands. Indy shops usually charge around $500 labor, well worth it if you don't have a lift.
Thread Starter
MBWorld Fanatic!
Joined: Aug 2011
Posts: 3,428
Likes: 288
From: New Zealand
I am definitely taking your advice on board. I just don't have anyone I can trust to do this work for me. I appreciate any knowledge and even if I do end up paying someone it would still be great to discuss my other questions if you are willing. I have done the conductor plate replacement on jackstands, that wasn't too bad.
Trending Topics
Thread Starter
MBWorld Fanatic!
Joined: Aug 2011
Posts: 3,428
Likes: 288
From: New Zealand
I think the main limitation will be trans height + jack vs clearance under the car. Although access is terrible, there aren't that many things to disconnect. I will contact my dealer again for an up to date quote.
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
MBWorld Fanatic!
Joined: Jun 2020
Posts: 2,138
Likes: 871
04 E55 AMG (totaled), 07 S550 4Matic, 14 E63S
Yes. Getting the car up in the air and a decent adapter on a jack would probably go a long way. Still sucks on the floor though. I am looking into a Quick Jack myself....not enough height for full lift. Need to build another garage....but that's another story.
MBWorld Fanatic!
Joined: Jul 2014
Posts: 3,327
Likes: 586
2005 e55 AMG
Tw2 trans is 2 hrs on your back and with two people to remove the exhaust and turn crank to remove torque converter bolts makes the job much easyer. Rear main is real easy to put on as well.
And as Greasemonkey said the job does suck on your back and for me kicks my ***,back and neck big time !!! But if you have to do it the key is ....get the car up REAL high so you can move around underneath.
And as Greasemonkey said the job does suck on your back and for me kicks my ***,back and neck big time !!! But if you have to do it the key is ....get the car up REAL high so you can move around underneath.
Last edited by SICAMG; Oct 14, 2021 at 07:39 AM.
