Project W208 CLK55: Maintenance Whore
I believe they do, but the rest of my dash is burlwood, so someone swapped it out.
Alright, another mini-update. The MAF came in today, and I installed it in the early evening. Long story short, it fixed all of my problems, so far. I drove it around for about 10 miles, so we'll see how it acts as the car 'adapts'.
The new BOSCH sensor:
New vs. old:
The old MAF. NOT Bosch or OEM. Maybe while it failed despite being newer?
In the process:
The codes:
From what I can tell:
P0100: MAF
P0110: Intake Air Temp
P0105: Manifold Absolute Pressure/Barometric Pressure Circuit malfunction
P0400: EGR flow malfunction
We'll see if any trigger the CEL again. I guess I have to clean out the EGR tube/value, now I have to figure out where it's located ...
Last edited by 03basesedan; Feb 17, 2016 at 11:10 PM.





I actually did order those. I agree; they're essential. I wish the site I purchased them from offered shipment tracking b/c I have no idea when they're arriving.
In other news, I enjoyed showing my friend's '15 435xi the CLK's taillights. 60 start speed to not disclosable end speed. It's interesting to see how he stays close until roughly 11 o'clock (about 1.75 -3 car lengths behind, depending on the run), and then the upper end of 3rd gear, and 4th gear, net another 2-4 cars depending on the end speed. He admitted he was surprised to see me pull away as strongly as I did. He said I was slowly pulling away until the upper end of my 3rd gear when it gap started to widen significantly. I assumed he was off the throttle when I saw this happening, but that was not the case.
It was a bit disappointing to see him close by until around 10/11 o'clock given the car has a flash tune. It may be time to consider headers. Based on my research, 435xi's seem to trap around 104-106 in the 1/4mi, so our encounter makes sense, but it does leave me with the desire for a bit more sound and power.
Last edited by 03basesedan; Feb 20, 2016 at 06:51 PM. Reason: spelling
The CLK was added because I missed having something I could tinker with that had power. I'll likely get rid of it this summer, and get something else. I like to cycle through cars, either daily drivers or projects, because I like experiencing new things. That said, I may just get rid of the C300, make the CLK my primary car, sell it later on, and buy a used C63. There are a lot of options, and the only thing I'm sure about is that I'd like to tighten up the W208's loose ends (radiator, diff. fluid, have a fuel pump ready in case the stock one dies, get the wood grain to match, ABS switch, cabin filters, redo stereo connections, valve covers, breather covers, etc), and see what happens.
The Best of Mercedes & AMG
The ashtray dash piece came in. I bought this primarily to replace the power outlet. It was cheap enough off eBay. The valve cover gaskets also came in, so that's good.
Today I spoke with Cory from Kleeman, and a set of headers they were recently selling on eBay will NOT fit our cars. I also discovered the Eurocharged headers will not fit the W208's, so if I can't get the fab guy I've been working with to the remove the primary cats, I'll just settle for secondaries and a resonator delete. It seems like that will be the end of the line for the power mods, which is a shame.
I spoke with my tuner back on the east coast, and he may be able to fit me in for a dyno tune in early March, so we'll see how it works out. I anticipate another 10ish whp from a dyno tune, and increases in response and drivability, but it's not a given that this will work out; he's very, very busy and I'll only be out east briefly.
I just ordered:
-2 more jugs of MB coolant in anticipation of the radiator swap
-2 rear diff screw/bolt/nut things
-Drain plug and gasket for future oil change (just in case)
-2 liters of MB 75W-85 rear diff. fluid
-ECS Tuning EGR kit (might as well replace the whole thing)
Another problem area I'm not looking forward to is the lower control arm bushings. It's clear they're shot, and the cheapest I've been able to find whole LCA replacements is $336/side. That's crazy. I guess I'll have to try and find some bushings. I read through Chappy's threads, but they were from so long ago the vendors are no longer advertising the bushings, or are no longer in business. That'll be the final area to tend to for this car.

i know some friends like you. it seems they like working on cars more than they like having the car to drive once its finished.
i respect that though, guys like you are how we learn lots of new stuff and small tricks
i plan on keeping my C43 as long as possible and we will see on the CLK55, but at least a few years.

i know some friends like you. it seems they like working on cars more than they like having the car to drive once its finished.
i respect that though, guys like you are how we learn lots of new stuff and small tricks
i plan on keeping my C43 as long as possible and we will see on the CLK55, but at least a few years.
Any ideas how much a shop would charge one to replace the header gasket?
I've scheduled the radiator, diff. fluid, and EGR for next week, so I'll have more updates then!
I'd strongly suggest you review this article before starting on the breather cover / valve cover work: http://www.benzworld.org/forums/w220...r-sealant.html
Last edited by floridawriter; Mar 7, 2016 at 09:24 PM.
And for sure get the breather tube kit. You will need it just plan on it.




I pulled down the lower dash panel after removing a few screws. You can see the switch (red circle).
The last owner was a real comedian. Is that a sheet rock screw? Doesn't look OEM ...
The new switch and part number.
Old vs. New (blue)
One needs to disconnect both plugs, and then twist half a turn clockwise to take it out. The swap is really simple, and there's no reason why ANYONE should pay a dealer, or mechanic, for this repair.
This is where it gets funny. I removed the trim piece around the gear selector to access and remove the 12v/cigarette lighter. As you may know from my earlier posts, my car has a mix of burlwood and black birdseye. It appears when the previous owner started the burlwood conversion he did not order a center trim piece with a cutout for the rear shade button, so it was stuffed under the dash. On a positive note, the center dash piece is easy to remove when I want to use the shade! Oh, and I can confirm it works!
Finally, the reason why the 12v charger wasn't working is because it wasn't plugged in. The wiring harness female? plug is no where to be found, and I suspect it's being used to power the aftermarket head unit



That's all for now, but my mechanic completed the radiator swap earlier today. I'll post a couple of pics later tonight!
This weekend will likely bring an EGR overhaul (bought the ECS complete EGR kit), install of the burlwood door trim pieces, and maybe the diff. fluid flush. Next week may see the valve cover/breather gasket replacement.


