2009 S63 codes P0175 & P2190
Thread Starter
Junior Member
Joined: Apr 2019
Posts: 63
Likes: 10
From: San Juan Capistrano
2009 S63
2009 S63 codes P0175 & P2190
Just got these coes today.
Did some searching and youtubing and seems to point to a dirty MAF. Coincidentally I just had a coolant refresh done at my local dealer and I'm wondering if they left something loose. There's a youtube video showing a loose fitting on the back of the air box on an E class that caused codes to pop. Next step is to take my airbox off and inspect connections and tubes. Then look at the MAF connections.
Anyone else gone through this already?
Thanks, Leo
Did some searching and youtubing and seems to point to a dirty MAF. Coincidentally I just had a coolant refresh done at my local dealer and I'm wondering if they left something loose. There's a youtube video showing a loose fitting on the back of the air box on an E class that caused codes to pop. Next step is to take my airbox off and inspect connections and tubes. Then look at the MAF connections.
Anyone else gone through this already?
Thanks, Leo
Newbie
Joined: Mar 2025
Posts: 11
Likes: 0
From: Tampa, FL
2009 E63 AMG P30
Hi, I was wondering if you could report back what the issue was?
QUOTE=bajaleo;8273068]Just got these coes today.
Did some searching and youtubing and seems to point to a dirty MAF. Coincidentally I just had a coolant refresh done at my local dealer and I'm wondering if they left something loose. There's a youtube video showing a loose fitting on the back of the air box on an E class that caused codes to pop. Next step is to take my airbox off and inspect connections and tubes. Then look at the MAF connections.
Anyone else gone through this already?
Thanks, Leo[/QUOTE]
QUOTE=bajaleo;8273068]Just got these coes today.
Did some searching and youtubing and seems to point to a dirty MAF. Coincidentally I just had a coolant refresh done at my local dealer and I'm wondering if they left something loose. There's a youtube video showing a loose fitting on the back of the air box on an E class that caused codes to pop. Next step is to take my airbox off and inspect connections and tubes. Then look at the MAF connections.
Anyone else gone through this already?
Thanks, Leo[/QUOTE]
Thread Starter
Junior Member
Joined: Apr 2019
Posts: 63
Likes: 10
From: San Juan Capistrano
2009 S63
Hi, I was wondering if you could report back what the issue was?
QUOTE=bajaleo;8273068]Just got these coes today.
Did some searching and youtubing and seems to point to a dirty MAF. Coincidentally I just had a coolant refresh done at my local dealer and I'm wondering if they left something loose. There's a youtube video showing a loose fitting on the back of the air box on an E class that caused codes to pop. Next step is to take my airbox off and inspect connections and tubes. Then look at the MAF connections.
Anyone else gone through this already?
Thanks, Leo
QUOTE=bajaleo;8273068]Just got these coes today.
Did some searching and youtubing and seems to point to a dirty MAF. Coincidentally I just had a coolant refresh done at my local dealer and I'm wondering if they left something loose. There's a youtube video showing a loose fitting on the back of the air box on an E class that caused codes to pop. Next step is to take my airbox off and inspect connections and tubes. Then look at the MAF connections.
Anyone else gone through this already?
Thanks, Leo
All my codes were related to my intake manifold failing. It's mostly made of magnesium and if your car has the M156 engine then your intake manifold will likely need service. On youtube there's a guy named Tasos Moschatos who has several videos showing how to do the repair. There's a throttle body plate that is the main culprit and you can find an aluminum replacement part online which is what I did. You have to remove the intake but it's not that hard if you have any wrenching skills. All my codes went away after this.
Good luck.
Newbie
Joined: Mar 2025
Posts: 11
Likes: 0
From: Tampa, FL
2009 E63 AMG P30
[QUOTE=bajaleo;9128117]
All my codes were related to my intake manifold failing. It's mostly made of magnesium and if your car has the M156 engine then your intake manifold will likely need service. On youtube there's a guy named Tasos Moschatos who has several videos showing how to do the repair. There's a throttle body plate that is the main culprit and you can find an aluminum replacement part online which is what I did. You have to remove the intake but it's not that hard if you have any wrenching skills. All my codes went away after this.
Good luck.
Yeah I have an 09 E63. I was afraid it might be the infamous fuel injectors staying open. I’m going to try to make an appointment with a Mercedes specialty shop tomorrow and see what conclusion they come to. Thanks for getting back to me!
All my codes were related to my intake manifold failing. It's mostly made of magnesium and if your car has the M156 engine then your intake manifold will likely need service. On youtube there's a guy named Tasos Moschatos who has several videos showing how to do the repair. There's a throttle body plate that is the main culprit and you can find an aluminum replacement part online which is what I did. You have to remove the intake but it's not that hard if you have any wrenching skills. All my codes went away after this.
Good luck.
