CEL Codes on 2006 CLS55 AMG
Thread Starter
Newbie
Joined: Apr 2024
Posts: 9
Likes: 0
From: Illinois
2006 CLS55 AMG
CEL Codes on 2006 CLS55 AMG
Hi,
I recently took delivery of this car and the CEL was on. I used a pretty basic OBDII scanner to read the codes. It was throwing P0505, P0507, and P0106.
After driving for about 20 minutes the engine was shaking, and did not feel like it was running well. The transmission seemed to be shifting awkwardly. This was happening at low RPMs and at about parking lot speed (5-7 mph).
Read about possible vacuum leaks caused by loose hoses, thought this was probable because VC gaskets were done recently. I removed the air box and driver side surge tank cover to get better access. Could not find a loose hose / cracked vacuum line in that area. I also noticed that the TB was fairly dirty, so I gave it a quick clean.
I put the car back together and started it up. The CEL was still on, but code P0106 was gone. I still had P0505 and P0507
Tried to clear the codes using OBDII scanner, and I was not able to. (possibly because the scanner is cheap / not meant for MB cars?)
Any help would be appreciated because I'm not super sure what to do
Thanks!
I recently took delivery of this car and the CEL was on. I used a pretty basic OBDII scanner to read the codes. It was throwing P0505, P0507, and P0106.
After driving for about 20 minutes the engine was shaking, and did not feel like it was running well. The transmission seemed to be shifting awkwardly. This was happening at low RPMs and at about parking lot speed (5-7 mph).
Read about possible vacuum leaks caused by loose hoses, thought this was probable because VC gaskets were done recently. I removed the air box and driver side surge tank cover to get better access. Could not find a loose hose / cracked vacuum line in that area. I also noticed that the TB was fairly dirty, so I gave it a quick clean.
I put the car back together and started it up. The CEL was still on, but code P0106 was gone. I still had P0505 and P0507
Tried to clear the codes using OBDII scanner, and I was not able to. (possibly because the scanner is cheap / not meant for MB cars?)
Any help would be appreciated because I'm not super sure what to do
Thanks!
MBWorld Fanatic!
Joined: Jun 2020
Posts: 1,177
Likes: 314
2006 CLS55 AMG, 2005 SLK 350 AMG
Hi,
I recently took delivery of this car and the CEL was on. I used a pretty basic OBDII scanner to read the codes. It was throwing P0505, P0507, and P0106.
After driving for about 20 minutes the engine was shaking, and did not feel like it was running well. The transmission seemed to be shifting awkwardly. This was happening at low RPMs and at about parking lot speed (5-7 mph).
Read about possible vacuum leaks caused by loose hoses, thought this was probable because VC gaskets were done recently. I removed the air box and driver side surge tank cover to get better access. Could not find a loose hose / cracked vacuum line in that area. I also noticed that the TB was fairly dirty, so I gave it a quick clean.
I put the car back together and started it up. The CEL was still on, but code P0106 was gone. I still had P0505 and P0507
Tried to clear the codes using OBDII scanner, and I was not able to. (possibly because the scanner is cheap / not meant for MB cars?)
Any help would be appreciated because I'm not super sure what to do
Thanks!
I recently took delivery of this car and the CEL was on. I used a pretty basic OBDII scanner to read the codes. It was throwing P0505, P0507, and P0106.
After driving for about 20 minutes the engine was shaking, and did not feel like it was running well. The transmission seemed to be shifting awkwardly. This was happening at low RPMs and at about parking lot speed (5-7 mph).
Read about possible vacuum leaks caused by loose hoses, thought this was probable because VC gaskets were done recently. I removed the air box and driver side surge tank cover to get better access. Could not find a loose hose / cracked vacuum line in that area. I also noticed that the TB was fairly dirty, so I gave it a quick clean.
I put the car back together and started it up. The CEL was still on, but code P0106 was gone. I still had P0505 and P0507
Tried to clear the codes using OBDII scanner, and I was not able to. (possibly because the scanner is cheap / not meant for MB cars?)
Any help would be appreciated because I'm not super sure what to do
Thanks!
Thread Starter
Newbie
Joined: Apr 2024
Posts: 9
Likes: 0
From: Illinois
2006 CLS55 AMG
The codes I was getting were: "Idle air control system RPM higher than expected (P0507)", "Idle control system (P0505)", and "Manifold Absolute Pressure (P0106)". I did a smoke test on the engine and found that there was a leak, but I could not find the hose where the leak was coming from. After performing the smoke test and putting everything back, I took the car for a short drive and there were no CEL lights, but I did get a "check fuel cap" error 10 mins into the drive. As mentioned earlier, the car was idling rough still and it did not feel like it was shifting right during low speeds. It does feel that the roughness has improved slightly, but it is still noticeable.
MBWorld Fanatic!
Joined: Jun 2020
Posts: 1,177
Likes: 314
2006 CLS55 AMG, 2005 SLK 350 AMG
The codes I was getting were: "Idle air control system RPM higher than expected (P0507)", "Idle control system (P0505)", and "Manifold Absolute Pressure (P0106)". I did a smoke test on the engine and found that there was a leak, but I could not find the hose where the leak was coming from. After performing the smoke test and putting everything back, I took the car for a short drive and there were no CEL lights, but I did get a "check fuel cap" error 10 mins into the drive. As mentioned earlier, the car was idling rough still and it did not feel like it was shifting right during low speeds. It does feel that the roughness has improved slightly, but it is still noticeable.
MBWorld Fanatic!
Joined: May 2022
Posts: 1,917
Likes: 499
From: The Netherlands
2005 CLS55 AMG W219 C219
The codes I was getting were: "Idle air control system RPM higher than expected (P0507)", "Idle control system (P0505)", and "Manifold Absolute Pressure (P0106)". I did a smoke test on the engine and found that there was a leak, but I could not find the hose where the leak was coming from. After performing the smoke test and putting everything back, I took the car for a short drive and there were no CEL lights, but I did get a "check fuel cap" error 10 mins into the drive. As mentioned earlier, the car was idling rough still and it did not feel like it was shifting right during low speeds. It does feel that the roughness has improved slightly, but it is still noticeable.
There aren't that many hoses on the M113k. Are the breather hoses ok? They run from the rocker covers to the throttle body. There is also a small vacuum pipe to the SAI solenoid and both SAI actuators
Thread Starter
Newbie
Joined: Apr 2024
Posts: 9
Likes: 0
From: Illinois
2006 CLS55 AMG
ended up taking the car to a mechanic and they found that the fuel injectors were missing gaskets. They ended up replacing the fuel injector seals, both air intake gaskets, throttle body seal, and resealed a breeder-hose. The serviced and cleaned the throttle body as well. This majorly improved the idle smoothness and shifting, but the car still idles slightly rough for some time after a cold start, but after about 30 mins of driving it idles almost completely smooth. Not sure if this is something to be concerned about.
Trending Topics
MBWorld Fanatic!
Joined: May 2022
Posts: 1,917
Likes: 499
From: The Netherlands
2005 CLS55 AMG W219 C219
Sounds already a lot better.
No gaskets on the fuel injectors? I think you mean the rubber seals? If so, then you didn't have proper fuel pressure and a pretty dangerous situation with all the fuel around a scorching hot engine + manifolds...You can take a look at fuel trims to see if you are running correctly or a bit on the rich/lean side. Fuel trims should be as low as possible. If it shows around -10% or +10%, then something is up. Below -5% or 5% is pretty good, but again, lower/closest to 0 is best.
No gaskets on the fuel injectors? I think you mean the rubber seals? If so, then you didn't have proper fuel pressure and a pretty dangerous situation with all the fuel around a scorching hot engine + manifolds...You can take a look at fuel trims to see if you are running correctly or a bit on the rich/lean side. Fuel trims should be as low as possible. If it shows around -10% or +10%, then something is up. Below -5% or 5% is pretty good, but again, lower/closest to 0 is best.
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
Thread Starter
Newbie
Joined: Apr 2024
Posts: 9
Likes: 0
From: Illinois
2006 CLS55 AMG
here is the picture that the mechanic sent me of the fuel rail
how would I check the fuel trims on this engine? Hopefully this could straighten out the little remaining rough idle. The mechanic performed a smoke test after repairs, so I'm not concerned about more undiscovered vacuum leaks.
