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Old 03-31-2019, 03:20 PM   #1
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2017 Interstate Grand Tour Ext
Gulf Breeze , Florida
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Rear wheel speed sensor failure

My wife was driving with cruise control on and we were 5 days into our trip on the Natchez Trace. The AI suddenly lurched forward (grabbing and surging) and the ABS, ESP and traction control lights came on, along with the engine light. My wife was driving about 50mph when it happened. Somewhat scary since we had no idea what was going on. We were pretty much in the middle of no where in Mississippi. We pulled over at the first opportunity and dug out the manual, which could have been useful if just one or two lights came on but with four it was pretty useless trying figure out what might be wrong. I decided to call the the service manager at our MB dealer in Pensacola to get an idea what might be wrong and if the vehicle is safe to drive. He felt it would be ok to drive but we should try and get to a MB service dealer asap. He thought one of the wheel speed sensors had failed. He tried to help us locate a dealer near our current location but the closest one was about 100 miles away. He thought we could experience further grabbing and surging but as long we were careful we should be ok.

We decided to cut our trip short and head back home using the main roads and not use the cruise control. We did not experience any further grabbing or surging. I picked up the vehicle on Friday from the dealer and turns out the problem was the left rear wheel speed sensor. The service manager explained he has had a number of customers that have experienced the same problem. He indicated I could expect the other wheel speed sensors to fail at some point. He thought MB should issue a recall but to date they have not done so. He did say that MB issued a warranty change for the wheel speed sensors. The sensors are now covered under the 5 year 100k mile emission warranty instead of the 3 year 36k standard warranty. If anyone experiences this problem and the dealer says it is not covered make sure they are looking at what is covered under the emissions warranty.

Also, the dealer replaced the driver's side air bag that is covered under a recall.
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Old 03-31-2019, 04:35 PM   #2
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We had the same issue (last year) about 750 miles from home. Scanner told me what was going on. We waited until we got home, 1 week later. The odd thing was that everytime we stopped for more than a few minutes, the ECU would try to clear and we would have the lurch hit again, followed by the dash lights. Our home service manager felt it "safe" to continue until we were home. Sometimes it has triggered a "Limp" mode, but not in our case....so we continued homeward.
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Old 04-01-2019, 08:59 AM   #3
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We have a 2016 GT. Both rear wheel sensors have been replaced. In addition to the symptoms already described, we experienced a pulsing brake pedal The system would sometimes reset when the ignition was turned off, sometimes it would not reset. Rough road or railroad crossings would usually activate the fault system. The service technician said that rust is usually the culprit and the best defense is frequent driving.
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Old 04-01-2019, 09:05 AM   #4
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Panama City Beach , Florida
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OMGosh!!! This is exactly what happened to us last month!!! And of course I was driving and DH was reading the owners manual looking for the warning indicators to see what was happening. We pulled off the road and called a MB dealer to see if the vehicle was safe to drive. Exact same sensor, exact same response from the vehicle engine (now that was scary cuz it felt like the engine was going to fall out or completely break down). No cruise control, no ESP, no lane assist, engine light on, and when our dash lit up like a Christmas tree, we took videos and pics as it was happening, which helped them diagnose the problem and they also changed out our airbag. I remember us talking about it and saying that it might just be a matter of time before the right sensor bit the dust........ It amazes me what happens when those sensors go out!!! We were headed to Naples, FL at the time the sensor went out, we made an appt in Ft Myers while we were there and they had it fixed and we were out of there in less than 2 hours.
It would be nice if I am not driving when the other sensor decides to go on the blitz!!!
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Old 04-01-2019, 10:29 AM   #5
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Had exact same problem two weeks ago 600 miles from home. Violent surging/buckling for three miles. Able to get it fixed same day by the grace of a MB dealer 10 miles away. 600$ repair now out of warranty. Have had multiple other sensor failures. 9 plus. No end in sight. MB unable to solve my problems.
Very disappointing.
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Old 04-01-2019, 11:28 AM   #6
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Quote:
Originally Posted by drgene View Post
Had exact same problem two weeks ago 600 miles from home. Violent surging/buckling for three miles. Able to get it fixed same day by the grace of a MB dealer 10 miles away. 600$ repair now out of warranty. Have had multiple other sensor failures. 9 plus. No end in sight. MB unable to solve my problems.
Very disappointing.
Were the other sensors that failed wheel speed sensors or other sensors? With the number of comments reporting the same problem and my dealer stating its a common occurrence, its a shame there is no way to force MB to do the right thing and offer a recall. I would not like being on an interstate going 65 -70 mph and have one these speed sensors fail.
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Old 04-01-2019, 12:49 PM   #7
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All failed sensors are wheel sensors. Three wheels changed twice. One wheel changed three times. ABS/ESP control module changed. Two sensors failed since module changed. Seven or eight trips altered by ABS/ESP warnings and resulting MB shop visit. 2013 Interstate Extend. 54,000 miles now. Bought new. Kept under roof. Interstate miles mostly. No off road. Driven at normal interstate speeds. Great road vehicle. Much disappointment with breakdowns.
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Old 07-29-2019, 08:13 AM   #8
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Had a left rear wheel speed sensor fail at 39,000 miles and had both rear sensors replaced at that time. At 68,000 miles I got the same dash lights (ABS, ESP, BAS/ASR), and cruise control didn't work. But after driving a few miles the lights went out. Happened twice again over the next few hundred miles, clearing itself each time. Then all worked fine for the remaining 1500 miles of our trip. I'm guessing that failure is imminent, and plan to have the replaced now that I am back home. But was surprised that the codes cleared themselves immediately. I would have guessed that they could only be cleared by a code reader, or that it would at least have taken several driving cycles for them to clear themselves. Or maybe the driving cycle provision only applies to emissions codes?
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Old 07-29-2019, 02:03 PM   #9
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Folks

Just a possible aftermarket specialty supplier to look at.

https://www.idparts.com/abs-sensor-r...te-p-6880.html

Not sure if this is one of the sensors in question but someone can at least take a look. This sensor is about $112.

Iíve bought top line parts from idparts for several years for my VW Beetle 1.9L TDI and thatís their market, German vehicles with Diesel engines. A good house to work with.

Not affiliated with idparts just a customer.

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Old 07-29-2019, 07:22 PM   #10
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MB wheel speed sensor is $140. Unless there is a reason to thing that the $112 part would last longer, I think I'd pay a bit more for the MB part. I was told that wheel speed sensor failure is common (or at least not uncommon) on the 3500 chassis, motorhomes especially.
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Old 07-30-2019, 07:04 AM   #11
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Titus

I donít know who made the sensor I donít own one. You can pretty much bet it wasnít made by MB.

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Old 07-30-2019, 09:10 PM   #12
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Idaho Falls , Idaho
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I had the right wheel sensor go out shortly after we bought our 2013 used in 2016. Then the same problem with the left wheel. However the left wheel problem turned out to be a short in the sensor wiring from the back tire. Since the wiring runs inside which is now covered by all the cabinets they ran a new wire under the chassis. No new problems.
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