Parking Assist Problem
Thread Starter
Junior Member
Joined: Jul 2012
Posts: 68
Likes: 0
From: Seoul
2010 Mercedes Benz GLK220 4Matic BlueEfficiency
Parking Assist Problem
I've had issues with PA before and now again after a car wash, another issue. Now it won't work at all. When I come to a stop, 2 red lights on either side come on along with a long beep. It then automatically shuts itself off. When I turn it on again, same thing, and then turns itself off.
It looks like it's a common issue but really no reason behind it nor a solution other than getting MB to fix it. Ugh, just went in for service after waiting a week to book an appointment early in the morning before work.
It seems like every time this issue happens is after a car wash. I'm hoping that it will suddenly start working again after the car dries up a bit but I'm not counting on it.
Anyone have this experience? I need my parking assist!
Thanks.
It looks like it's a common issue but really no reason behind it nor a solution other than getting MB to fix it. Ugh, just went in for service after waiting a week to book an appointment early in the morning before work.
It seems like every time this issue happens is after a car wash. I'm hoping that it will suddenly start working again after the car dries up a bit but I'm not counting on it.
Anyone have this experience? I need my parking assist!
Thanks.
Junior Member
Joined: Jan 2013
Posts: 45
Likes: 0
2014 ML350 4matic, 2013 GLK350 4matic, 2012 C200, 2006 C350 4matic(sold)
I've had issues with PA before and now again after a car wash, another issue. Now it won't work at all. When I come to a stop, 2 red lights on either side come on along with a long beep. It then automatically shuts itself off. When I turn it on again, same thing, and then turns itself off.
It looks like it's a common issue but really no reason behind it nor a solution other than getting MB to fix it. Ugh, just went in for service after waiting a week to book an appointment early in the morning before work.
It seems like every time this issue happens is after a car wash. I'm hoping that it will suddenly start working again after the car dries up a bit but I'm not counting on it.
Anyone have this experience? I need my parking assist!
Thanks.
It looks like it's a common issue but really no reason behind it nor a solution other than getting MB to fix it. Ugh, just went in for service after waiting a week to book an appointment early in the morning before work.
It seems like every time this issue happens is after a car wash. I'm hoping that it will suddenly start working again after the car dries up a bit but I'm not counting on it.
Anyone have this experience? I need my parking assist!
Thanks.
These parking sensors don't work when they freeze up..
My suggestion would be to turn them off when you're going through the car wash, and once you get out of the car wash, dry them as soon as possible
I dont think there is anything mercedes can do to fix this
Super Member
Joined: Mar 2013
Posts: 915
Likes: 185
Yikes:
Next time you have the problem you could try gently drying (or gently cleaning, if necessary) using a tissue/Kleenex/Tempo on all the sensors. See if that makes a difference.
Last edited by MBKLUE; Feb 16, 2015 at 02:39 PM.
Member
Joined: Jul 2013
Posts: 138
Likes: 1
From: Trois Rivieres, Quebec
SLK 350 2013
The warning tone and lights mean the sensors aren't working properly. I've never had the problem with washing or water. ... Snow and Ice and gunk ... often.
Again, what's the temperature there? If a thin film of ice forms on the sensors, they will often go offline.
Or,... maybe the wiring is getting water in them and shorting/mucking up.
Again, what's the temperature there? If a thin film of ice forms on the sensors, they will often go offline.
Or,... maybe the wiring is getting water in them and shorting/mucking up.
Super Member
Joined: Mar 2013
Posts: 915
Likes: 185
Yikes:
I've had it happen probably half a dozen times. It was cold-ish but not near freezing.
The warning tone and lights mean the sensors aren't working properly. I've never had the problem with washing or water. ... Snow and Ice and gunk ... often.
Again, what's the temperature there? If a thin film of ice forms on the sensors, they will often go offline.
Or,... maybe the wiring is getting water in them and shorting/mucking up.
Again, what's the temperature there? If a thin film of ice forms on the sensors, they will often go offline.
Or,... maybe the wiring is getting water in them and shorting/mucking up.
Member
Joined: Jul 2013
Posts: 138
Likes: 1
From: Trois Rivieres, Quebec
SLK 350 2013
The sensors seem to be pretty sensitive. This morning I ran the GLK through a carwash ... it was just too caked with salt and muck.
Came out, ... clean bumper, but the thin film of water instantly froze and the PA system beeped (double red front and back).
I guess its not a defect, ... just really sensitive sensors. Happens too as soon as the smallest amount of snow or freezing rain sticks to the sensors. I keep a spray bottle of -40 washer fluid in the trunk and clean off the sensors sometimes, when I remember to do it.
Came out, ... clean bumper, but the thin film of water instantly froze and the PA system beeped (double red front and back).
I guess its not a defect, ... just really sensitive sensors. Happens too as soon as the smallest amount of snow or freezing rain sticks to the sensors. I keep a spray bottle of -40 washer fluid in the trunk and clean off the sensors sometimes, when I remember to do it.
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Senior Member
Joined: Aug 2013
Posts: 268
Likes: 8
From: Calgary, AB
2016 Golf R, 2014 GLK
It's very normal - the sensors can be affected by even small amounts of moisture. What you don't want is that moisture getting into the back side of the sensor and shorting them out - then it has to be replaced - which is something we've already had done once so far in a year of ownership.
You'll know if they actually fail. The blind spot monitor function will throw an error message in your display, and they'll stay yellow at all speeds.
You'll know if they actually fail. The blind spot monitor function will throw an error message in your display, and they'll stay yellow at all speeds.
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Member
Joined: May 2020
Posts: 183
Likes: 24
C450 AMG
I've had issues with PA before and now again after a car wash, another issue. Now it won't work at all. When I come to a stop, 2 red lights on either side come on along with a long beep. It then automatically shuts itself off. When I turn it on again, same thing, and then turns itself off.
It looks like it's a common issue but really no reason behind it nor a solution other than getting MB to fix it. Ugh, just went in for service after waiting a week to book an appointment early in the morning before work.
It seems like every time this issue happens is after a car wash. I'm hoping that it will suddenly start working again after the car dries up a bit but I'm not counting on it.
Anyone have this experience? I need my parking assist!
Thanks.
It looks like it's a common issue but really no reason behind it nor a solution other than getting MB to fix it. Ugh, just went in for service after waiting a week to book an appointment early in the morning before work.
It seems like every time this issue happens is after a car wash. I'm hoping that it will suddenly start working again after the car dries up a bit but I'm not counting on it.
Anyone have this experience? I need my parking assist!
Thanks.
I heard that spraying WD40 on/in them
will get rid of the water sitting in or around them since that’s usually the issue. Mine did this at the car wash and has done so ever since. I’m gonna try the WD in the morning and see what happens.
