DAnton1316

I have had my C350 for a little over 6months and other than a cracked windshield, I have had not issues until now.

About 2 weeks ago a portion of my cluster display has begun to disappear and come back every few times I drive the car. Everything still works but it is very annoying. At the same time my mirrors folding in on lock are hit or miss as well.

I came here to see if anyone has heard of this issue and can help me out.

Kind Regards
Dan

tanktube67

Warranty

DAnton1316

I have already talked to the dealer. They have no idea what the issue is and say I could be out of my car for a least a week. I came here hoping it was an easy fix and could avoid that.

I will most likely Warranty this.

- Dan

tanktube67

I think your dealer will give you a loaner??

tanktube67

Have them order the part, swap the LCD screen it wont take a lot of time.

Diesel Benz

I don't think they would have the LCD as a spare part but that would be the dealer's head ache. This one does seem odd though, it looks more like the computer did not print all the screen content for the second photo, or does it look different when you see it in real?

Usually when you have issues with an LCD it concerns full vertical or horizontal pixel lines. In this case it could be horizontal but it would concern at least two different positions which sounds a bit odd. I guess still possible.

DAnton1316

This is the problem...
The screen itself is fine. The dealership does not know where to start looking.

When acting up... All the trasmission information and the line disappear consistantly.

- Dan

C300Sport

Does the transmission have a seperate control unit? Maybe it is not sending the info or there is a break in the line? Does it affect driveabiltiy?

delirium

i had the same issue. it hasent happened for awhile now tho. I took it to the dealer & they could not get it to happen of course....

MBTex

The dealer should give you a loaner while they find out what the problem is, then they give you the car back while they order any parts they made need and give you a loaner again while they fix it.

That is an odd issue that I haven't heard of and could be caused by many things. Unless there is a bulletin on it (or if the dealer has seen the problem before) odds are they'll need to check a few things out just to determine the problem.

FrankW

dealers don't repair LCDs. they just order a new cluster and install it. while they do that you can ask them to give you the 2009 cluster which has those hooded rings if you want. (personally not a fan of those hooded ones)

DAnton1316

Really? How many times did it happen and how long has it been since? Did the exact same things disapear?

-Dan

Polar Bear

It really couldn't be too many different things. They can use SDS to do an LCD screen test to determine if it is displaying all of the data that is being sent to it (it looks like it is since there are no irregular bars, etc., in the image) and see if there are any fault codes. Looks like there is a fault in the CAN bus sending data to the I/C, or the I/C itself is bad. The I/C will store fault codes if there is an issue with CAN communication.

Ron Jr

Can you select different menus with the command wheel when this happens? This is a strange one a definite job for the dealer.

delirium

when i had it, i could do everything as usual except the "PRND" was missing from the display.

Pristine

If the display starts to go bad, they basically have to replace the whole instrument cluster. That's what happened with my 00 S500 when things started to disappear.

Let them figure out what needs to be done and ask them to give you a loaner while they work on your car.

BAPHA

Unfortunately, I am going to have to dust this old thread off...I started experiencing the same problem (intermittently) with the instrument cluster display as the OP and was wondering what was the resolution for him? Did the dealer have to replace the entire cluster ?

BlackjackM

When my transmission was acting up, the display started acting weird although didn't disappear completely. It looked like his first pic even when driving, no "C" or "S" for comfort/sport and no gear highlighted. They ultimately replaced my transmission valve body because it also has a control unit attached, but my trans was also acting up.

aowhaus

maybe you could ask to upgrade to the newer style hooded guages.

Sathinas

It's a little more complicated than that...

The TCU talks to the ECU which in turn talks to a bunch of other modules as well as the Instrument Cluster module. Basically, there is no direct link between the transmission control unit and the cluster. It's a... cluster, if you know what I mean.

BAPHA

...and of course, today the display works like new! I expected this, actually, so that's why I am posting here, since there isn't much a dealer can do if I cannot show them the problem.
But in general, do you think the issue could possibly be in the connectors that go into the display, rather than the actual display itself?

RLE

Was there any question??

Phil Smart will provide a loaner but Barrier will not.

BlackjackM

Take a video or pic when it is acting up. A good dealer will take that as proof and start looking.