sziel99

wipers only work if car is moving forward any one dealt with that?

Plutoe

Do you have all wiper speeds in P or N or D???

sziel99

All wiper speeds including intermittent work in D but not if the car is sending still, only if in forward motion. Don't go on at all in P or N
It's yet another quirk I have discovered.

Rudeney

I don't know of any connection between gear position and the wipers. There are some other things, though, that will stop the wipers. The hood being opened (or registering as open) is one. Maybe it's possible that the hood latch sensor is broken just enough so then when still, it registers as open, but forward movement closes it? It's located in the left (USA-driver's) side hood latch.

Plutoe

After reading the documentation, I believe that you have a faulty steering column module--it is that module that reads in the shifter and wiper

To confirm get a DAS Xentry or equal scan--the handy dandy OBD will not do the job!!

JimVonBaden

Mine seems to not work when standing still on auto, but if I switch to low or high speed they work standing still. My 2016 Audi Q5 does the same thing. It is a bit annoying.

Rudeney

Jim, your CLK500 should have a rain sensor. If for some reason it malfunctions, such as the wiring harness coming unplugged there behind the rear view mirror, it reverts to "intermittent" mode which is directly tied to vehicle speed. I wonder if that's what happened on yours?

JimVonBaden

The rain sensor works fine, so long as I am moving. I can leave the wipers on and they will not move sitting still, or moving, when dry, but will come on when moving and raining.

Rudeney

So the sensor works - they wipe according to the amount of rain on the glass?

JimVonBaden

Yes, so long as I am moving. Otherwise, the wipers do not move until I put them into the next higher setting.

Rudeney

Well, I'm stumped!

ambit

I've noticed the wipers will not auto-activate if the driver-side door is open (in Park)
I think the car is trying to prevent the door from being splashed. If you change the wiper speed up to 'high' it will go. But not on Auto or low.

If you close the door, it activates immediately.

screw991le

Mine go on the second I start the car. In any gear.

sailorben

Yeah with the ignition on, mine go as soon as the door is closed. Doesn't need to be moving in either of the CLKs I've had.

Hoserbenzo

Maybe it's connected to your wheels. It only moves when your wheels move. Lol. Sorry I'm stumped too.

ambit

You might be on to something..
if the two spurving bearings were in a direct line with the panametric fan the wipers might work

sziel99

Just following up on this, and problem solved for now. I was driving and my wipers were functioning, and continued to function when I put the car in neutral but then when I came to a stop at a traffic light they stopped. I think it was tied to the "your hood is open sensor". I would get that red warning on and off, although I had the wipers going when this warning would come up on the dash and they would keep working. Anyhow....I don't know if the hood sensor was seated properly or what, and I couldn't really tell if there was anything wrong, but I kind of jiggled it around a bit and reached underneath to push it upward and my wipers now function even when the car is standing still!! I also haven't gotten the "your hood is open" warning ever since the jiggle. I am now at peace with this car (purchased at the beginning of April 2016)....until the next thing.

TechSuperstar

I've always had the same issue since I've own my car. As far as I can tell all sensors are working fine but if I stop for too long the wipers stop going until I start moving again. This only pertains to the 'autosensing' position. The only thing I can come up with is a bug in their autosensing software that takes speed in consideration and when speed is 0 it screws up ( / or * by 0 = ?) ... anyway, I've gotten used to it.

JimVonBaden

Sounds just like mine.

DanielFD

My c230 and Clk320 both would slow down when i'm not moving and completely stop if i'm in anything other then D (maybe R, cant remember) in automatic mode.

benzo021

I finally figured it out! For me my hood sensor was always on my dash which I didn’t pay much attention to at first but turns out it is the reason why your wipers won’t work while parked. If you push down on the latch that has the sensor while the hood is up it should #1 fix the sensor issue and #2 it will give you the ability to use your wipers while parked. This is what worked for me.