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

Hydrolock

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Old 11-26-2023, 03:27 AM
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2011 S550
Hydrolock

Hydrolock is not the end of the world if it lock on idle

so cylinder 5 locked after I took apart the motor SLOWLY

gotta cut the wiring harness
take off bolts from tranny engine mounts
remove everything from front of motor to hoise motor out

on stand take off everything to get to cylinder take off oil pan
expose crank
find bent cylinder rod

and reverse

6-8 months

Run diagnostic
and wha la ….. car runs

note no gasket for oil pan
damn Mercedes uses glue

no Leaks

there is life after death
lol
whew
damn lot of work
Old 11-26-2023, 06:02 AM
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S500
"find bent cylinder rod" - this is a common issue on AMG engines that have been chipped - then driven by madmen.

Seems some owners don't understand asking a chunk of cold aluminum to make 600 horse power 1 foot after driving off from a night club - well before the oil noticed it was running, and the cyl block was ever warm enough to left the bits of aluminum move easily, tends to come to an ugly end.

How did the cyl bore look ? On the three AMGs with a 3mm bend in one rod I've seen, they all took out the bore too - there are people making single cast iron liner bodge up kits - as otherwise its $40k to have a new AMG block meeting its original specification
Old 11-26-2023, 07:51 AM
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04 E55 AMG (totaled), 07 S550 4Matic, 14 E63S
M273 or M278? Injector hung open or something else? Actual water?
Old 11-26-2023, 11:10 AM
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2011 S550
Hydrolock

bore not damaged so I proceeded

YUP people “use and abuse”


Originally Posted by BOTUS
"find bent cylinder rod" - this is a common issue on AMG engines that have been chipped - then driven by madmen.

Seems some owners don't understand asking a chunk of cold aluminum to make 600 horse power 1 foot after driving off from a night club - well before the oil noticed it was running, and the cyl block was ever warm enough to left the bits of aluminum move easily, tends to come to an ugly end.

How did the cyl bore look ? On the three AMGs with a 3mm bend in one rod I've seen, they all took out the bore too - there are people making single cast iron liner bodge up kits - as otherwise its $40k to have a new AMG block meeting its original specification
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Old 11-26-2023, 07:32 PM
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2015 SL400 (M276 Turbo), 2014 C350 Sport (M276 NA), 2004 SL500 (M113), 2004 Audi TT225 (BEA)
What's a cylinder rod? Is that the same as a piston rod?
Old 11-26-2023, 08:11 PM
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2011 S550
Hydrolock

Oops
yup that’s what I meant lol

taking a look inside the motor it’s well built too
Old 11-27-2023, 07:35 AM
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S500
...wow another odd USA naming convention ?

the Conrod connects the piston to the crank - never heard anyone call it by any other words

there's reason this gets the name





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Old 11-27-2023, 07:45 AM
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they messed it up - and put a kink in it - and now they crash rather than blow up

real motoring - then gets a wobble on going on and thus doesn't reach the conrod straight


Last edited by BOTUS; 11-27-2023 at 07:57 AM.
Old 11-27-2023, 07:55 AM
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S500
Old 11-27-2023, 05:42 PM
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S500
ready for some CGI ?


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