2010 ML350 Bluetec - codes P2111, P2101, P240F and P0123
Thread Starter
Member
Joined: Sep 2016
Posts: 104
Likes: 21
From: Portland, Oregon USA
2010 ML350 Bluetec, Alfa Romeo GTV6
2010 ML350 Bluetec - codes P2111, P2101, P240F and P0123
Hey gang,
We had the AEM performed on our 2010 ML350 a few months ago, and other than one of the emissions tests not running yet all else has been fine. Oil consumption seems to be down a little bit, but we also don't drive it that much so we have only put maybe 500 miles on it since the modifications.
But this week it set a couple fault codes.
It started with:
P0123 - Throttle/pedal position sensor/switch A circuit high
P240F - exhaust gas recirculation slow response
Then the light went off and they went away for a day or two.
Now those two are back and it also set:
P2101 Throttle Actuator Control Motor Circuit Range/Performance
P2111 Throttle Actuator Control System Stuck Open
All signs are pointing to a bad throttle valve assembly. I checked my receipt and they didn't replace that part, but did remove it along with the intake pipe.
A little research shows that this isn't a very common problem, at least here. One person had a rubber band stuck in their intake.
When I looked up the throttle body on the Mercedes website I get this part number, listed for $1125. 113-141-01-25
Pelican parts lists this part number: 642-090-02-70-M14 which I believe is an older part number. They also list that part number above, but show it for gas models.
Has anybody else had a similar issue? I'm going to go poke around and take a look this morning after I drop off the kids and look for loose connectors if I can get to it.
Thanks!
Ian
We had the AEM performed on our 2010 ML350 a few months ago, and other than one of the emissions tests not running yet all else has been fine. Oil consumption seems to be down a little bit, but we also don't drive it that much so we have only put maybe 500 miles on it since the modifications.
But this week it set a couple fault codes.
It started with:
P0123 - Throttle/pedal position sensor/switch A circuit high
P240F - exhaust gas recirculation slow response
Then the light went off and they went away for a day or two.
Now those two are back and it also set:
P2101 Throttle Actuator Control Motor Circuit Range/Performance
P2111 Throttle Actuator Control System Stuck Open
All signs are pointing to a bad throttle valve assembly. I checked my receipt and they didn't replace that part, but did remove it along with the intake pipe.
A little research shows that this isn't a very common problem, at least here. One person had a rubber band stuck in their intake.
When I looked up the throttle body on the Mercedes website I get this part number, listed for $1125. 113-141-01-25
Pelican parts lists this part number: 642-090-02-70-M14 which I believe is an older part number. They also list that part number above, but show it for gas models.
Has anybody else had a similar issue? I'm going to go poke around and take a look this morning after I drop off the kids and look for loose connectors if I can get to it.
Thanks!
Ian
Thread Starter
Member
Joined: Sep 2016
Posts: 104
Likes: 21
From: Portland, Oregon USA
2010 ML350 Bluetec, Alfa Romeo GTV6
Well as I suspected it was mechanic error. The mechanics who did the AEM didn't push the throttle connector all the way on, so it was loose. Thankfully it only took 15 minutes to figure it out.
Three of the biggest issues we have had with this thing have all been mechanic mistakes. Two missing o-rings and this loose connector.
Three of the biggest issues we have had with this thing have all been mechanic mistakes. Two missing o-rings and this loose connector.
MBWorld Fanatic!
Joined: Jan 2009
Posts: 9,224
Likes: 1,798
From: V E G A S
1922 Ford Model T / no OBD
I did AEM on 4 Bluetecs and every single one of them require some correction work after mechanics pushed it outdoor.
On 1 Sprinter new modules and Nox sensor were only finger -tight, on other the wires would rub sharp edges of heat shields, on W212, the mechanic left all shipping labels on exhaust. That could create fire danger.
The long way mechanics will go to save 20 seconds of labor.
On 1 Sprinter new modules and Nox sensor were only finger -tight, on other the wires would rub sharp edges of heat shields, on W212, the mechanic left all shipping labels on exhaust. That could create fire danger.
The long way mechanics will go to save 20 seconds of labor.
