Check Engine p0012 p0015 p0022
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Those errors are all indicative of failed camshaft adjuster solenoids (a.k.a. "cam magnets"). In addition to throwing errors, they can also leak. This is covered in scenarios 2 and 3 of the "balance shaft" TSB:
http://benzbits.com/BalanceShaftTSB.pdf
I'd replace all four of them. You can get them for about $100 (total). They come with new seals and are a fairly easy DIY. Also check the back ends of the heads for leaks. The left (USA driver) side has two plugs that often leak. The right (USA passenger) side has an oil centrifuge cover that often leaks. These are also inexpensive parts and fairly easy to DIY. The only challenge with the camshaft solenoids is that you will probably have to remove the oil cooler, which means replacing its gasket and draining the radiator. The cam plugs are easy - they just snap in. The centrifuge cover can be a bit of a challenge simply because it uses Torx bolts and there's not much room to work, so you'll need a compact wrench set for that.
Those errors are all indicative of failed camshaft adjuster solenoids (a.k.a. "cam magnets"). In addition to throwing errors, they can also leak. This is covered in scenarios 2 and 3 of the "balance shaft" TSB:
http://benzbits.com/BalanceShaftTSB.pdf
I'd replace all four of them. You can get them for about $100 (total). They come with new seals and are a fairly easy DIY. Also check the back ends of the heads for leaks. The left (USA driver) side has two plugs that often leak. The right (USA passenger) side has an oil centrifuge cover that often leaks. These are also inexpensive parts and fairly easy to DIY. The only challenge with the camshaft solenoids is that you will probably have to remove the oil cooler, which means replacing its gasket and draining the radiator. The cam plugs are easy - they just snap in. The centrifuge cover can be a bit of a challenge simply because it uses Torx bolts and there's not much room to work, so you'll need a compact wrench set for that.
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Joined: Jan 2016
Posts: 41
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2007 clk350 w209
Thanks a lot. Excellent. Will these work?
https://www.google.com/aclk?sa=L&ai=DChcSEwili_mui7XfAhWM42QKHcs5B7AYABAR GgJwag&sig=AOD64_3uG1br0T7YFZXeb_D7ZyBiF_3Jzg&ctyp e=5&q=&ved=0ahUKEwis4POui7XfAhWhjlQKHdxUApMQww8IOg &adurl=https://www.amazon.com/Mercedes-Benz-Camshaft-Adjuster-Exhaust-Genuine/dp/B00KB8GM3U/ref%3Dasc_df_B00KB8GM3U/%3Ftag%3Dhyprod-20%26linkCode%3Ddf0%26hvadid%3D312126147596%26hvpo s%3D1o2%26hvnetw%3Dg%26hvrand%3D424859525261002334 9%26hvpone%3D%26hvptwo%3D%26hvqmt%3D%26hvdev%3Dc%2 6hvdvcmdl%3D%26hvlocint%3D%26hvlocphy%3D9061183%26 hvtargid%3Dpla-715052971832%26psc%3D1
it is a 2007 clk 350 hardtop\coupe American left hand drive. V6.
Will I have to remove the oil cooler on this 07 clk350 to replace the magnets? If so, I'll probably take it to an indy and have them replace them for me. Thanks
https://www.google.com/aclk?sa=L&ai=DChcSEwili_mui7XfAhWM42QKHcs5B7AYABAR GgJwag&sig=AOD64_3uG1br0T7YFZXeb_D7ZyBiF_3Jzg&ctyp e=5&q=&ved=0ahUKEwis4POui7XfAhWhjlQKHdxUApMQww8IOg &adurl=https://www.amazon.com/Mercedes-Benz-Camshaft-Adjuster-Exhaust-Genuine/dp/B00KB8GM3U/ref%3Dasc_df_B00KB8GM3U/%3Ftag%3Dhyprod-20%26linkCode%3Ddf0%26hvadid%3D312126147596%26hvpo s%3D1o2%26hvnetw%3Dg%26hvrand%3D424859525261002334 9%26hvpone%3D%26hvptwo%3D%26hvqmt%3D%26hvdev%3Dc%2 6hvdvcmdl%3D%26hvlocint%3D%26hvlocphy%3D9061183%26 hvtargid%3Dpla-715052971832%26psc%3D1
it is a 2007 clk 350 hardtop\coupe American left hand drive. V6.
Will I have to remove the oil cooler on this 07 clk350 to replace the magnets? If so, I'll probably take it to an indy and have them replace them for me. Thanks
Last edited by clk350Driver; Dec 22, 2018 at 11:22 PM.
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That link does not work for me, but I see "Amason" embedded in it. Personally, I would not buy critical car part on Amazon or eBay as there is a proliferation of fake parts on the market. I don't mean Chinese branded crap, but Chinese crap that is made to look like an OE MBZ or OEM Bosch part - complete with boxes, labels,
Here is one source for genuine MBZ parts - they are an authorized MBZ dealer that has an online discount parts store:
https://www.mercedespartsdelivered.c...-2720510177kit
This is the entire kit - 4 adjuster solenoids, an oil filter and the oil cooler gasket. Most of the time, you do have to remove the oil cooler to get the solenoid that sits behind it out of the head. It's not hard - drain a gallon of coolant from the radiator, remove a few bolts.
Here is one source for genuine MBZ parts - they are an authorized MBZ dealer that has an online discount parts store:
https://www.mercedespartsdelivered.c...-2720510177kit
This is the entire kit - 4 adjuster solenoids, an oil filter and the oil cooler gasket. Most of the time, you do have to remove the oil cooler to get the solenoid that sits behind it out of the head. It's not hard - drain a gallon of coolant from the radiator, remove a few bolts.
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Joined: Sep 2013
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From: near Birmingham, AL
2014 E350 Sedan; 2025 GLB 250
Thread Starter
Junior Member
Joined: Jan 2016
Posts: 41
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2007 clk350 w209
Well, the smell was coming from the cam expanding plugs. Replaced those in 7 minutes. and now i have fresh air from ac
still have the cel. I ordered the cam magnet replacement kit from fcp and will do it myself. I will get low profile wrenches and try to do it without removing the oil canister.
Thanks all. indy tried to rob me, told me my valve cover gasket was leaking. son of a *****. As soon as i pulled the plastic engine cover off, the engine is remarkably easy to work on, and oil leaks even easier to pin point.
still have the cel. I ordered the cam magnet replacement kit from fcp and will do it myself. I will get low profile wrenches and try to do it without removing the oil canister.
Thanks all. indy tried to rob me, told me my valve cover gasket was leaking. son of a *****. As soon as i pulled the plastic engine cover off, the engine is remarkably easy to work on, and oil leaks even easier to pin point.
