https://www.nitto.com/eu/en/products/temish_search/003/
Mercedes headlight fix
Nitto vent cap used as fix in USA :https://www.moparmagazine.com/2019/07/out-of-the-fog/
Documented Occurrences of this issue online (W222 Sclass)
Saturday 12 September 2020
Tuesday 19 November 2019
Mercedes Benz Sclass W222 - Headlight moisture damage
21st November 2018 - First noticed moisture in both headlights, Vehicle 1 year, 7 months & 14 days old at this point. Photos below.
3rd December 2018 - Emailed photos below to MB dealer, told its normal:
9 February 2019 - Email sent again to MB dealership with yet more photos below showing increased moisture levels
Nov 2018 to Feb 2019 - Repeated emails with photos and phone calls to Mercedes customer care in UK & Ireland
25th March 2019 - Desiccant Gel pack installed in both headlights... no more moisture
12 Nov 2019 - Moisture back again in driver side headlight (see below) - email sent to MB dealership, appointment booked to view the vehicle.
14 November 2019 - Driver side dipped beam failure.
16
November 2019 - Moisture now in both headlights
19 November 2019 - car inspected at MB dealership... water in headlight, electrical fault due to water damage (see photos). New headlight assembly and voltage converter required.
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| Water droplets running down the inside of the lens |
22 November 2019 - New driver side headlight assembly and two control units installed at MB dealership. Drove home moisture is present again on the same day.
27 November 2019 - Call to Mercedes UK customer services. Chris agreed to look into the issue and report back.
2 December 2019 - Chris from Mercedes UK informs me he has talked to the MB dealership & requests I take the car back into the dealership to be investigated further & the issue will be raised with the technical support team.
22 December 2019 - 1 month since new headlight assembly was installed, moisture levels are increasing.
24 December 2019 - Moisture still present, similar levels as seen previously (see February 9th Photo above) which resulted in the complete failure of the unit due to water damage.
30 December 2019 - Driver side headlight inspected at MB dealership, excessive moisture present desiccant gel pack saturated with water. Another new headlight assembly installed i.e. 2nd new headlight installed in a month.
Within 1 hour of use on drive home from the dealership the following two errors are being displayed.
Moisture present again in newly installed headlight after 2 hour drive.
3 January 2020 - Driver side lower control unit replaced due to water damage/fault code. No fault code for upper control unit so wasnt replaced. New desiccant gel pack installed driver side only. No moisture present
12 August 2020 - Moisture reappearing again after 7 month on the driver side headlight which was installed back in January 2020. Over the next five days moisture levels are increasing exactly as before when the control unit failed due to water damage.
21 August 2020 - Both desiccant bags (driver side headlight) completely saturated with moisture. Water droplets also present in desiccant bag holder.
13 September 2020 - Moisture levels increasing in driver side headlight again
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