Is there a way to check timing chain with tearing engine apart?
Newbie
Joined: Jan 2020
Posts: 10
Likes: 2
From: Netherlands
C200 kompressor coupe M271940 2006
Wow! It's been a while, but I'm back.
I little history on the car. In 2015 I drive it from Washington to Texas for work relocation. Drove it in Texas for maybe 6 months before I sold it. Never had any issues with the timing chain, or engine. Although, I think the car may be in the bottom of a lake somewhere. Turns out, the person I sold it to didn't register it, and shot someone in the car. The police found a piece of the broken glass that had code/ID on it, and used those numbers to trace it back to me. Fortunately I still had proof of the sale, and showed that I had reported the sale to the state. I was able to help DPS in the investigation, but not sure what the outcome was.
It was a great car. If anyone has any questions about the timing chain job, I can try to answer as best I can.
I little history on the car. In 2015 I drive it from Washington to Texas for work relocation. Drove it in Texas for maybe 6 months before I sold it. Never had any issues with the timing chain, or engine. Although, I think the car may be in the bottom of a lake somewhere. Turns out, the person I sold it to didn't register it, and shot someone in the car. The police found a piece of the broken glass that had code/ID on it, and used those numbers to trace it back to me. Fortunately I still had proof of the sale, and showed that I had reported the sale to the state. I was able to help DPS in the investigation, but not sure what the outcome was.
It was a great car. If anyone has any questions about the timing chain job, I can try to answer as best I can.
Got the INA 551 0187 10, need torque specs, exact steps, and any “don’t do this” tips.
No WIS, so real-world advice appreciated!
Thanks!
Senior Member
Joined: Apr 2009
Posts: 317
Likes: 49
w203cl
The tip I have, the chain can jump if you remove or install the tensioner at the wrong crankshaft position. Do not rotate the crankshaft counter clock wise, even not a few degrees, all the slag must be on the tensioner side. Rotate the engine by hand after install to get the full tension. You will probably hear a click from the piston.
Newbie
Joined: Jan 2020
Posts: 10
Likes: 2
From: Netherlands
C200 kompressor coupe M271940 2006
The tip I have, the chain can jump if you remove or install the tensioner at the wrong crankshaft position. Do not rotate the crankshaft counter clock wise, even not a few degrees, all the slag must be on the tensioner side. Rotate the engine by hand after install to get the full tension. You will probably hear a click from the piston.
is there a diy or step by step somewhere ?
Senior Member
Joined: Apr 2009
Posts: 317
Likes: 49
w203cl
Put the engine on OT at compression stroke cyl 1. (this is not necessary if you deal with new chains and new camshaft sprockets, therefore no slag in the chain anywhere)
Take generator out, remove tensioner, new in (preloaded), 40 Nm
Take generator out, remove tensioner, new in (preloaded), 40 Nm
Newbie
Joined: Jan 2020
Posts: 10
Likes: 2
From: Netherlands
C200 kompressor coupe M271940 2006
I need clarification on the correct installation method for the timing chain tensioner on my M271.940.
Car: 2006 C200 Kompressor (M271.940)
Engine no.: 271940 30 739130
VIN: WDB2037422A888888
I replaced the tensioner with an INA 551 0187 10.
The old tensioner (from a 2023 timing job in Poland) had an aluminium sealing washer fitted.
Before I reinstall it properly, I need to confirm:
• Should the INA tensioner be installed metal‑to‑metal into the tensioner bracket?
• Or does this engine variant still require an aluminium sealing washer?
I’ve emailed Mercedes and INA for confirmation, but I’d appreciate input from anyone familiar with the M271 tensioner/bracket revisions.
Thanks rb
