GSOTXL

Anyone have an issue like this yet with your GLC?

I had gotten off the freeway and came to a stop at an intersection. When I started to accelerate, the transmission started to feel very jerky and car felt like it was losing power; the ESP light came on briefly too. Then it started to drive as normal, and repeated this several times the few blocks to get home; I kept wondering if the car would stall or die out or something. It has been A LONG time since I drove a car and wondered if I would get home or not.

Called and have a service appt set up for Monday June 6; the service advisor had not yet heard of this kind of issue with GLCs (but I was also the first in our area to have the infamous front strut issue which they also have not heard of before me).

My GLC is at about 3900 miles (took delivery on Dec 24).
I was more thankful that nothing screwy happened when I was on the freeway than upset that this issue happened (it's a new model so I know that there may be some issues).

Did this happen with anyone else yet?

JEVA

I have not heard of this either...perhaps an ESP sensor is loose or faulty?

decorily

Was there some work done on the front struts?

GSOTXL

Yes indeed; I posted the service invoice of the work on another thread...
https://mbworld.org/forums/glc-class...ml#post6736166

decorily

Perhaps then a loose or damaged ABS sensor etc!

GSOTXL

After experiencing the problem 5 days ago, I did not drive my car again until this morning when taking it to the dealer for service. On the way to the highway, I did not experience the transmission jerkiness or feeling like it would stall, but the driving did seem a bit off to me.

Then, just as I got onto the highway, I heard a chime and saw a number of different things (all this is new from what I experienced last Thursday):
ESP light on
ABS light on
Warning message: ESP and ABS systems failed
Warning message: Active Lane Keeping Assist system failed
Warning message: Pre-Safe systems limited functionality

I drove very carefully the rest of the way to the dealer and kept the engine running so they could see all of these indicators and warning messages, and they kept it running to take it to the service area for diagnostic.

None of them have heard of this issue yet with USA GLCs, so now I just wait to learn what they find.

JEVA

I had a similar issue with my X6 and it was a loose sensor wire.

decorily

1st thing to consider is the work previously done on struts etc to eliminate loose or damaged sensor/wiring as I have previously suggested.

GSOTXL

Yes, thank you. I reminded the service advisor of that. :-)

GSOTXL

My dealer's service dept found the issue....a wheel speed sensor/wire had come out that caused all these system failures. They replaced the sensor.

So JEVA and decorily both nailed it with suspected issues, and especially decorily because it was the left-front wheel....same side as the front strut replacement.

decorily

Great that you got sorted. With all the modern electronics very little can cause all sorts of faults to register.