Check engine light on after bumper cover removal
Thread Starter
Newbie
Joined: Dec 2009
Posts: 1
Likes: 0
ml350
Check engine light on after bumper cover removal
I have 2008 ML350. I was painting the front bumper cover..
Here's what I have did.
1. removed the front bumper cover and disconnect wire harnesses for fog lamp and temp sensor thingy)
2. I drove like 20 feet w/o bumper cover
3. put back bumper cover
now I started the car and Check engine light is on.
Was I supposed to disconnect the battery when i disconnect wire harnesses?
I'm pretty sure everything was back together.
help me out guys
Here's what I have did.
1. removed the front bumper cover and disconnect wire harnesses for fog lamp and temp sensor thingy)
2. I drove like 20 feet w/o bumper cover
3. put back bumper cover
now I started the car and Check engine light is on.
Was I supposed to disconnect the battery when i disconnect wire harnesses?
I'm pretty sure everything was back together.
help me out guys
Junior Member
Joined: Sep 2009
Posts: 39
Likes: 0
2009 ML320 Bluetec
I have 2008 ML350. I was painting the front bumper cover..
Here's what I have did.
1. removed the front bumper cover and disconnect wire harnesses for fog lamp and temp sensor thingy)
2. I drove like 20 feet w/o bumper cover
3. put back bumper cover
now I started the car and Check engine light is on.
Was I supposed to disconnect the battery when i disconnect wire harnesses?
I'm pretty sure everything was back together.
help me out guys
Here's what I have did.
1. removed the front bumper cover and disconnect wire harnesses for fog lamp and temp sensor thingy)
2. I drove like 20 feet w/o bumper cover
3. put back bumper cover
now I started the car and Check engine light is on.
Was I supposed to disconnect the battery when i disconnect wire harnesses?
I'm pretty sure everything was back together.
help me out guys
Thanks.
Super Member
Joined: Dec 2007
Posts: 898
Likes: 9
From: Woodstock, IL
His 2019 RAM Cummins Turbo Diesel Laramie; Her's 2007 ML320 CDI P3; Mine BMW R1200R
These trucks are funny. They moniter everything even if you unplug with the key off, and will throw codes. Swing by the dealer and have them reset.
I had a code show up after I unplugged some wires under the drivers seat to reroute the wiring harness so as to avoid being kicked the kids feet. Truck was off, key out and when I restarted, there was the light!
I had a code show up after I unplugged some wires under the drivers seat to reroute the wiring harness so as to avoid being kicked the kids feet. Truck was off, key out and when I restarted, there was the light!
