S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

Replacing turbo on S65

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Old May 4, 2015 | 09:04 PM
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Depends on the weather
Replacing turbo on S65

Watched this video of a tech pulling the engine to replace a turbo...pretty interesting.

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Old May 4, 2015 | 09:14 PM
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It is a long, but fairly common procedure as engine mounts which are a common failure require the same procedure.

Very cool nevertheless. Every time I see the v12 drop out without a snag it brings a smile
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Old May 4, 2015 | 11:11 PM
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"Luckily the client had an extended warranty."
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Old May 4, 2015 | 11:13 PM
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Originally Posted by alx


It is a long, but fairly common procedure as engine mounts which are a common failure require the same procedure.

Very cool nevertheless. Every time I see the v12 drop out without a snag it brings a smile
The motor mount replacement requires the engine drop?
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Old May 5, 2015 | 06:38 AM
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Depends on the weather
I'm glad I have a warranty too!
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Old May 5, 2015 | 11:30 AM
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Originally Posted by snovvman
The motor mount replacement requires the engine drop?
if you have kids' hands you might be able to do it on the s600. i have seen such magic pulled off lol..

the v12 amg motor requires engine out both for the s and sl class motor mounts
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Old May 5, 2015 | 12:00 PM
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is it only for v12 biturbo?
or does it also apply to v6/v8 biturbo?
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Old May 5, 2015 | 01:30 PM
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Originally Posted by MJ50
is it only for v12 biturbo?
or does it also apply to v6/v8 biturbo?
to be honest- have not seen the v8 biturbo out of a car yet nor have been a witness of any engine mounts go bad on those. so i dont know.
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Old May 9, 2015 | 11:12 PM
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Originally Posted by alx
if you have kids' hands you might be able to do it on the s600. i have seen such magic pulled off lol..

the v12 amg motor requires engine out both for the s and sl class motor mounts
On my 2008 S65 I was charge 6.5 hours (at the local dealership) to replace motor and transmission mounts with no charge for coolant etc that would be related to removing the engine. So, somebody has figured out how to replace mounts with removing the engine. I do think the WIS shows around 25 hours labor though (could be wrong). Total charge including parts was $1,303.25.
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Old May 11, 2015 | 06:12 AM
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Very interesting video. I replaced the engine mounts on my V12TT last year. I didn't move the engine - just supported it and dropped the subframe. I also replaced all the ABC pipes at the same time.

That allowed me to keep all the oil, water, air, fuel, HVAC, ABC and electrical interfaces connected, which saves a great deal of work (and risk). No need to even remove the cold air intakes.

Its still a difficult job, as access to the left upper forward engine mount bolt is blocked by the AC compressor. A high quality E-torx ratchet wrench may help.

Changing the engine mounts was actually a "while I'm at it" activity, as I rebuilt both turbos. The right hand side one was leaking oil and smoking, so I removed and rebuilt both. The turbo rebuild kits, ABC pipes and motor mounts totalled about £400.

Nick

Last edited by Welwynnick; May 11, 2015 at 07:53 AM.
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Old Jun 3, 2024 | 04:13 PM
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Engine mounts

Originally Posted by alx
if you have kids' hands you might be able to do it on the s600. i have seen such magic pulled off lol..

the v12 amg motor requires engine out both for the s and sl class motor mounts
are you sure? I had my engine and tranny mounts changed recently on my w221 s65 and the labor was aroubd a grand, i didnt think my engine came out, im curious and am going to call my mechanic to ask him, thank you
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Old Jun 4, 2024 | 09:23 AM
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222 S-65
I can do engine mounts in an S65 in three hours without breaking a sweat.

No; the engine does not come out.

Turbos? Engine out.
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Old Jun 4, 2024 | 09:34 AM
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I tried to watch it - it was the most boring event I have ever seen on screen

a car in the distance some awful music then he has what looks almost like in the background a badly lit pallet he puts on the ground - its about as usefully informative as Boeing have on why they can't make spaceships that function
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Old Jun 4, 2024 | 09:36 AM
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this is interesting

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Old Jun 4, 2024 | 10:00 AM
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9 out of 10 car drivers

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Old Nov 3, 2024 | 01:37 AM
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I left my car sit for 5 months. The turbos are working at higher revs but don't seem to be working at low revs, there seems to be a dreadful lag it is not right. It is not the coil packs or the controller they are new and it was working prior to me leaving it sit around without driving it.
I have two questions and would really appreciate your advice:
[1] Please point me in the direction of the Turbo rebuild kits. I have not pulled it apart yet, what brand make model Turbo is used in the 2008 model ?
[2] I was wondering with the MB Star system is there a special transmission map for the W221 5 speed S65 2007 2008 and compared to normal W221 S600s or less ?
Cheers,
Grant
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Old Nov 3, 2024 | 01:39 AM
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S65 E320
Hi John
Do you know the make and model of the turbos in the s65 2008 ?
Do you know where I can get a turbo rebuild kit ?
Cheers,
Grant.
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Old Nov 3, 2024 | 04:51 AM
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pull the air cleaners and take the mice out ?

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Old Nov 3, 2024 | 03:53 PM
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Originally Posted by alx
if you have kids' hands you might be able to do it on the s600. i have seen such magic pulled off lol..

the v12 amg motor requires engine out both for the s and sl class motor mounts
The non dealer Mercedes shop I took my 2009 S600 to was able to swap out the 2 engine mounts and 1 transmission mount without pulling the motor. They jacked up the motor in place just enough.

The price out the door put a smile on my face…

johnny

Last edited by johnnyrocket52; Nov 3, 2024 at 03:59 PM.
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Old Nov 5, 2024 | 08:12 AM
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Originally Posted by gfmerc
Hi John
Do you know the make and model of the turbos in the s65 2008 ?
Do you know where I can get a turbo rebuild kit ?
Cheers,
Grant.
Grant....

I didn’t get photos of markings on turbos when I got to replace the 275 in the 221 car.

If you need to replace turbos this is your opportunity to give them the upgrades needed to make more FUN!
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Old Nov 5, 2024 | 08:15 AM
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Originally Posted by gfmerc
I left my car sit for 5 months. The turbos are working at higher revs but don't seem to be working at low revs, there seems to be a dreadful lag it is not right. It is not the coil packs or the controller they are new and it was working prior to me leaving it sit around without driving it.
I have two questions and would really appreciate your advice:
[1] Please point me in the direction of the Turbo rebuild kits. I have not pulled it apart yet, what brand make model Turbo is used in the 2008 model ?
[2] I was wondering with the MB Star system is there a special transmission map for the W221 5 speed S65 2007 2008 and compared to normal W221 S600s or less ?
Cheers,
Grant
Grant.... Plug it into XENTRY. There will be codes that go along with it not making sufficient boost. Follow that trail of bread crumbs.
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Old Nov 8, 2024 | 12:50 AM
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It is like a high priced woman, when she behaves it is wonderful.
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Old Nov 9, 2024 | 07:59 AM
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Complains a lot, costs a fortune to maintain, and provides immense pleasure. I totally agree.
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Old Nov 10, 2024 | 05:46 AM
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Originally Posted by JohnLane
Grant.... Plug it into XENTRY. There will be codes that go along with it not making sufficient boost. Follow that trail of bread crumbs.
Thanks John,
I am having this looked at I think the techs have an Autel system.
I might contact Benzninja so he can dial in to have a look.
Otheriwse I can see this snowballing into a very big bill as the quoted price is $17,363.20 per turbo x 2.
Sounds like the S-Class lady is wanting a diamond ring.....
I was thinking at worst replacing some pipework in the area and then some "turbo reconditioning" if there is a pack ?
Regards,
Grant.
.

Last edited by gfmerc; Nov 10, 2024 at 05:47 AM. Reason: additional info
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Old Nov 10, 2024 | 06:05 AM
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there was a post last week - the guy went in for some basic stuff and before he had it back they had the heads off

the intercooler (charge cooler in merc land) is a of a better functional design, being water cooled. But the system leaks coolant and it drops in to moped world... this guy had a new pipe allowing them to refill the charge cooler and it all went in and hydro locked the engine....

I wonder if the always leaky system from new, keeps being topped up with normal tap water and it corrodes / freezes up and pops parts....
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