Diagnosing/Replacing Faulty Parktronic
Thread Starter
Junior Member
Joined: May 2004
Posts: 28
Likes: 2
From: Northeast USA
2012 W204 C300 4Matic Sport (Facelift)
Diagnosing/Replacing Faulty Parktronic
Hi all,
My 2005 S500 4matic, has had flakey parktronic sensors for a few months now. I'm now thinking of trying to replace the sensors myself.
1. Does anyone know how to figure out which sensor is bad? I can't believe they just all failed at once, since the problem seems intermittent.
2. Is there any way to get diagnostic info about which sensor failed from COMAND?
3. Are they any guides for removing the front bumper/replacing the sensors?
Thanks!
My 2005 S500 4matic, has had flakey parktronic sensors for a few months now. I'm now thinking of trying to replace the sensors myself.
1. Does anyone know how to figure out which sensor is bad? I can't believe they just all failed at once, since the problem seems intermittent.
2. Is there any way to get diagnostic info about which sensor failed from COMAND?
3. Are they any guides for removing the front bumper/replacing the sensors?
Thanks!
MBWorld Fanatic!
Joined: Dec 2006
Posts: 4,949
Likes: 39
From: Clifton, NJ
96 and 08 911 turbos
You need star to pull the codes for the parktronic sensors.
2. No
3. You don't need to remove the bumper, just the impact strip, which pops on and off.
You can either pay the dealer $125 for diagnostics on which sensor is bad, or spend the same $125 for 2 extra sensors, which you can install at the same time....and then you'll have all new ones in the corner.
part is 001 542 74 18
$59 at oediscountparts.com with free shipping.
2. No
3. You don't need to remove the bumper, just the impact strip, which pops on and off.
You can either pay the dealer $125 for diagnostics on which sensor is bad, or spend the same $125 for 2 extra sensors, which you can install at the same time....and then you'll have all new ones in the corner.
part is 001 542 74 18
$59 at oediscountparts.com with free shipping.
Thread Starter
Junior Member
Joined: May 2004
Posts: 28
Likes: 2
From: Northeast USA
2012 W204 C300 4Matic Sport (Facelift)
Do you mean that I should buy 3 sensors and then do it by trial and error replacing all the left 3 and then all the right 3? I'm not even sure it's the front sensors that are bad. All the parktronic displays show the two red segments. So how would I know which ones to try?
MBWorld Fanatic!
Joined: Dec 2006
Posts: 4,949
Likes: 39
From: Clifton, NJ
96 and 08 911 turbos
Do you mean that I should buy 3 sensors and then do it by trial and error replacing all the left 3 and then all the right 3? I'm not even sure it's the front sensors that are bad. All the parktronic displays show the two red segments. So how would I know which ones to try?
You probably will need to stop by a dealer to give you the location of the sensors. Should run you no more than $150 or so.
You can paint them with a bottle of mb touch up paint. Nothing complex.
