E class auto wipers after replacement screen
E class auto wipers after replacement screen
Author
Discussion

DamienCBR

Original Poster:

2,037 posts

247 months

Tuesday 20th June 2017
quotequote all
Hi all,
I have a 2016 e-class estate. I had to get a new windscreen fitted the other day after a stone chip developed into huge crack within 24hrs.

Screen was fitted on Friday. The car obviously has rain sensing wipers, i have always left them in the first auto setting on the stalk. However something strange is now happening. When i start the car, the wipers do one sweep. This has never happened before. I popped down to the glass place this morning and low and behold it didn't do it, just as i was leaving it did it, They plugged in to see if there were any faults and it threw up nothing. Cleaned the glass where the sensor is attached but it still did it. (Several times with them watching)

I spoke to a pal that works for Mercedes in sales and he said his dosen't do this, as mentioned above mine didn't before the windscreen change.

Can anyone shed any light please. The glass place have said they may need to put another screen in, which is fine, just inconvenient, they are also going to speak to Mercedes. Any comments would be helpful.

Thanks
D

Magic919

14,190 posts

225 months

Tuesday 20th June 2017
quotequote all
I suspect it's the sensor, but ask Glassman on here.

mike_e

595 posts

287 months

Tuesday 20th June 2017
quotequote all
My mate just has just his screen replaced and had the same issues, it had to got back to the main dealers for rain sensor calibration.

Glassman

24,581 posts

239 months

Tuesday 20th June 2017
quotequote all
Which model is it? 212 or the 213 (and is the replacement a genuine, MB glass?)

DamienCBR

Original Poster:

2,037 posts

247 months

Tuesday 20th June 2017
quotequote all
Glassman said:
Which model is it? 212 or the 213 (and is the replacement a genuine, MB glass?)
It is a 212, not genuine MB Class, it is a Lamishield. That is what National Windsreens fitted.

D

Glassman

24,581 posts

239 months

Tuesday 20th June 2017
quotequote all
DamienCBR said:
It is a 212, not genuine MB Class, it is a Lamishield. That is what National Windsreens fitted.

D
The sensor is probably not clipped into the (two) retainers properly. Hopefully nothing more than that.

Some aftermarket screens (and their components, like rain sensor mounts) can cause sensors to work differently. OE is always best.


DamienCBR

Original Poster:

2,037 posts

247 months

Tuesday 20th June 2017
quotequote all
Thanks. When I popped back into the place this morning they unclipped and reclipped the sensor with me in the car.

Glassman

24,581 posts

239 months

Tuesday 20th June 2017
quotequote all
http://www.mbclub.co.uk/forums/electronics/164182-...

Or a soft reset:

(with engine running and all passenger doors closed) start at [0] then turn on wipers to [III] position, then put the switch in the [0] position then put it in the auto [I] position. At this point have someone splash water on the windscreen (arm out the window) as the doors have to be closed to reset this function. This should (soft) reset (but this is usually after a battery disconnect).

Edited by Glassman on Tuesday 20th June 22:49

DamienCBR

Original Poster:

2,037 posts

247 months

Tuesday 20th June 2017
quotequote all
Thanks again. Just tried that to no avail.

Glassman

24,581 posts

239 months

Wednesday 21st June 2017
quotequote all
Have MB look at it, and plug in to see if there is an error (and investigate why). It could be that the sensor is misaligned, or part of the wiring has been damaged. IME, Mercedes won't touch it if it has a non OE screen in it.

DamienCBR

Original Poster:

2,037 posts

247 months

Wednesday 21st June 2017
quotequote all
Thanks. That's what I was afraid of. While speak to glass company again, they said they could replace again. Will speak to Avila about OE glass.

Bellini

768 posts

175 months

Wednesday 21st June 2017
quotequote all
This has been a common issue on Range Rover replacement windscreens for some time.

I had two new non-OE windscreens fitted to my RR with non-functioning auto wipers and lights each time and the only solution, after resets, new sensors, etc, was a new OE Pilkington windscreen on the third attempt.

Ironically, us RR owners had heard of the same issue with MB windscreen replacements.

Dicky Knee

1,091 posts

155 months

Thursday 22nd June 2017
quotequote all
DamienCBR said:
Thanks. That's what I was afraid of. While speak to glass company again, they said they could replace again. Will speak to Avila about OE glass.
I have insurance through Mercedes which is underwritten by Aviva. Their glass replacement 'hotline' took me to one of the national mobile glass replacement companies who would only fit pattern glass not OE. You have to call and speak to a human being at Aviva and they will reimburse you if you want to use another fitter and OE glass but you have to pay up front and send in the invoice and they pay the claim direct to you less the excess. I had mine fitted at the Merc dealership who outsource it someone highly recommended on line (ask them who they will be using to fit it before you book it in). The wait for a W211 screen was a few weeks as there were none in stock in the UK and it had to come from Germany (by horse and cart I assume).

ruhall

577 posts

170 months

Thursday 22nd June 2017
quotequote all
Quite a common problem, generally down to either non-OE windscreen or sensor mounted too close/far from screen.

Aware of a Ford that recently ended up having to go to main dealer for a 3rd replacement screen after 2 previous attempts by 'windscreen specialists'. Sensor was, supposedly, 2mm out.

Yet another 'new' problem; aren't drivers able (or, perhaps, capable) of turning wipers or lights etc. on themselves anymore?

DamienCBR

Original Poster:

2,037 posts

247 months

Thursday 6th July 2017
quotequote all
Update.
National Windscreen agreed to fit another windscreen at which point I asked about Fitting a Merc one. I explained that I would call Aviva to see what could be done, they were suggesting a Pilkington. An hour later the manager at NW called me and said that he had spoken to Merc and it would be about three days for it to come and he would speak to Aviva directly about getting it authorised. Merc screen now fitted and all working correctly. I didn't have to phone Aviva at all. Jason and Lee at NW were great.

Glassman

24,581 posts

239 months

Thursday 6th July 2017
quotequote all
DamienCBR said:
Update.
National Windscreen agreed to fit another windscreen at which point I asked about Fitting a Merc one. I explained that I would call Aviva to see what could be done, they were suggesting a Pilkington. An hour later the manager at NW called me and said that he had spoken to Merc and it would be about three days for it to come and he would speak to Aviva directly about getting it authorised. Merc screen now fitted and all working correctly. I didn't have to phone Aviva at all. Jason and Lee at NW were great.
Aftermarket windscreen replaced with an OE version, and problem solved? Or was there a reset/recalibration needed too?

DamienCBR

Original Poster:

2,037 posts

247 months

Sunday 9th July 2017
quotequote all
They had already check the calibration and was apparently fine on the non OE screen but alas did not work. Didn't need to take to Merc for anything.