Frisco

FYI I took my car in for the 25k mile service today, and the rep said that he got notice yesterday of a new TSB for something something to do with faulty fan wires. When I know more, I'll report back.

Frisco

Wire harness replaced but I got no explanation of what the problem was supposed to be.

lucycat

I don't know if this is relevant to your TSB, but it may be.
The engine cooling fan on my '04 CLK55 suddenly got "stuck", and the ear-splitting roar wouldn't stop. At the same time, unclear if related, a main engine control unit "blew a fuse". The car has been in the shop a week now waiting for a replacement unit from Germany (it has to be "matched up" with my engine?).
There have been a shocking number of minor mishaps that seem out of place in a car in this league. Side view mirror falling off, front fog light and back light falling off, windshield wiper that totally missed cleaning. Plus a "Safety Recall" for seat belts.

mbtech208

The early TSB requires replacement of the engine control unit and installing an adapter harness between the fan and the main harness. A new bulletin came out just saying to install the adapter harness, not the control unit.

Harris

mbtech, can you verify this: https://mbworld.org/forums/showthrea...threadid=68340

RJC

Hey Dave, how have you been?

Is either TSB for early 04's and what does the adapter actually do?

Any other TSB's we should be aware of?


Thanks and regards,

mbtech208

I've been pretty good, thanks. You?

The TSB applies to '03 and '04 models, I don't know the exact VIN cutoff numbers. As far as the adapter, I'm baffled. It's just a 4 or 5 wire, 7 or 8 inch long adapter harness that connects in series between the fan and the main harness. It might contain a resistor, but that doesn't seem to me like it would cure the problem of the fan coming on when it's not supposed to. It made more sense to replace the engine control unit too. I've only fixed one CLK with this problem, and it was when the TSB wanted to replace the control unit AND install the harness, which of course fixed the problem.

There are other TSB's out there, but there are far too many coming out every week to remember what they are for and what cars they pertain to.

RJC

I've been good thanks. Glad to get your feedback on the technical stuff.

I remember when I got my 03 209 it had a bad vibration when the fan went into full speed, the shop foreman said they had a way to reduce the highest level of fan speed which also reduced the roar. I believe they were able to do this via the MB laptop but I don't remember the exact details.

Sorry to hear about the avalanche of the TSB's, thanks Schrempp!
If you happen to see any we should know about please post.

Thanks.

clk2k3

What does TSB stand for?

And can I get a idea of if you guys get them done or do you wait untill there is a problem with the car that pertains to the specific solution?

RJC

Technical Service Bulletin

caigy

Is this TSB only for the CLK 500 or is it also for the CLK320?

Thanks,
caigy

CLK 320 Cab
Cadet Blue/Black top/Black interior
6CD/Nav/Xenon/Wood Steering Wheel

mbtech208

It only applies to the CLK500 and CLK55, coupe and convertibles.

AMIL

is thetre a website where i can find out all the tsb's

mbtech208

There is, unfortunately, only dealers have access to it. If I find time, I will print out the list and make a thread in the tech section with 209 TSBs.

RJC

Thanks, this would be most appreciated by us all

mbtech208

I've posted a list of the bulletins in the tech section.

RJC

VIZ

You may want to check out this website:

http://www-odi.nhtsa.dot.gov/home.cfm

RJC

Didn't see this listed under the TSB's you were kind enough to post

mbtech208

Whoops, how ironic that it was one I missed. It was at the very bottom of one of the pages I printed out, sandwiched between 2 unimportant bulletins. My mistake:o