Mercedes-Benz Forum - View Single Post - Timing Chain Replacement
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post #1 of (permalink) Old 06-06-2019, 10:00 AM Thread Starter
BenzWorld Newbie
Date registered: Jun 2019
Vehicle: 07 C230 Sport
Location: San Francisco Bay Area
Posts: 2
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
(Thread Starter)
Timing Chain Replacement

2007 Mercedes Benz 2007 C230 Sport
( W203 with M272 E25 (2.5L V6 ))
I replaced
all camshaft position sensors
all camshaft adjuster magnets
with inclusion of new harnesses

The CEL assertions are now
P0011, P0014, P0015, P0022, P0025

Basically (over time and more drive sessions )
both camshaft A/B banks
with advanced/retarded timings will manifest.

Balance Shaft engine problem factory addressed:
engine serial number includes engineered fix

I believe I am looking at a timing chain replacement
( I hear there is a existing procedure ( ~$1500ish )
that weaves in the new chain elements without the extensive
( ie labor intensive) opening up of engine

Engine runs smooth with noted hesitation (lag) but once
engaged it acquires power band performance.
Slight rattle appears on startup only ( oil pump delivery window )
No further rattle as if from a timing chain tensioner problem.

I'm in SF Bay Area and looking for reference to a talented mechanic
that can perform the timing chain replacement.

Recommendations ( or any birddogging of mechanical knowhow
will be appreciated )
emarkham is offline  

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