Swirl flaps or something else?
Thread Starter
Newbie
Joined: Dec 2022
Posts: 8
Likes: 0
From: Greenville, NC
2008 GL320, 2012 C250, 2015 GL450
Swirl flaps or something else?
2008 GL320 approx. 155K miles
I've got symptoms that seem to fit a swirl flap issue (sudden loss of power, even with pedal to the floor that goes and comes) but the codes I'm getting don't seem to point right to that, any ideas or advice on how to eliminate possibilities? Here are the codes I'm getting from my iCarsoft MB2 scanner:
2359-1 Current Check system "charge Pressure Control" too low boost pressure.
2601-2 Historic Mass air flow sensor right the air mass is too small.
2355-2 Current Check system "Exhaust gas recirculation control" the air mass is too large.
3053-1 Current Check component B2/7b1(intake air temperature sensor) The signal voltage is too high
Cleared those codes and 2355-2 and 3053-1 came right back.
Additional information, about a year ago I replaced the turbo actuator and about two months ago I replaced the MAF sensors/intake air duct assembly because it had cracked at the turbo connection.
I've got symptoms that seem to fit a swirl flap issue (sudden loss of power, even with pedal to the floor that goes and comes) but the codes I'm getting don't seem to point right to that, any ideas or advice on how to eliminate possibilities? Here are the codes I'm getting from my iCarsoft MB2 scanner:
2359-1 Current Check system "charge Pressure Control" too low boost pressure.
2601-2 Historic Mass air flow sensor right the air mass is too small.
2355-2 Current Check system "Exhaust gas recirculation control" the air mass is too large.
3053-1 Current Check component B2/7b1(intake air temperature sensor) The signal voltage is too high
Cleared those codes and 2355-2 and 3053-1 came right back.
Additional information, about a year ago I replaced the turbo actuator and about two months ago I replaced the MAF sensors/intake air duct assembly because it had cracked at the turbo connection.
Senior Member
Joined: Aug 2018
Posts: 421
Likes: 125
From: Kelowna, BC
08 GL320 CDI
My wifes did something similar, I cleaned the EGR and replaced the DPF sensor. Now it doesn't go into limp mode or loss of power.
EGR wasn't too bad, but the sensor replacement fixed it. It's under the vehicle, took about 15 mins to change. Super easy.
EGR wasn't too bad, but the sensor replacement fixed it. It's under the vehicle, took about 15 mins to change. Super easy.
Member
Joined: Nov 2018
Posts: 139
Likes: 37
From: Portland, OR
GL320 CDI
Totally unrelated, but I LOVE your collection of 4000Q! Any pictures?
Member
Joined: Nov 2018
Posts: 139
Likes: 37
From: Portland, OR
GL320 CDI
I was getting Deja Vu until I realized I responded to this over on BenzWorld. +1 on Sallad's DPF sensor suggestion. Cheap part and <15mnins to replace.
