Rear Window Washer Fluid
Thread Starter
Junior Member
Joined: Jul 2019
Posts: 19
Likes: 5
From: North Carolina, USA
2020 GLE 350
Rear Window Washer Fluid
My wife noticed a while back that the rear window was not spraying when pushing the wash button. I tried a few different time and it worked fine. Today, with all the fun pollen, I tried to use it and nothing. I repeated several times and even held for quite some time. I believe this shares one reservoir that handles both the front and back. At first I was wondering if the line essentially emptied back forward, but the pump shouldn't allow that.
Has anyone had similar issues? If not I will take it in, but if something simple I would rather save my time.
Has anyone had similar issues? If not I will take it in, but if something simple I would rather save my time.
Thread Starter
Junior Member
Joined: Jul 2019
Posts: 19
Likes: 5
From: North Carolina, USA
2020 GLE 350
Plenty of washer fluid... the reservoir is full and all three jets spray like theres not tomorrow.
I have seen some other posts, many of which were defect rants; however, if you know of a helpful one I will gladly check it out.
I have seen some other posts, many of which were defect rants; however, if you know of a helpful one I will gladly check it out.
Member
Joined: May 2015
Posts: 129
Likes: 20
From: Florida
2025 Porsche Cayenne S Hybrid + 2023 EQS 580 SUV
My wife noticed a while back that the rear window was not spraying when pushing the wash button. I tried a few different time and it worked fine. Today, with all the fun pollen, I tried to use it and nothing. I repeated several times and even held for quite some time. I believe this shares one reservoir that handles both the front and back. At first I was wondering if the line essentially emptied back forward, but the pump shouldn't allow that.
Has anyone had similar issues? If not I will take it in, but if something simple I would rather save my time.
Has anyone had similar issues? If not I will take it in, but if something simple I would rather save my time.
Member
Joined: Dec 2019
Posts: 89
Likes: 29
GLE 350, C300, GLC 300
My wife noticed a while back that the rear window was not spraying when pushing the wash button. I tried a few different time and it worked fine. Today, with all the fun pollen, I tried to use it and nothing. I repeated several times and even held for quite some time. I believe this shares one reservoir that handles both the front and back. At first I was wondering if the line essentially emptied back forward, but the pump shouldn't allow that.
Has anyone had similar issues? If not I will take it in, but if something simple I would rather save my time.
Has anyone had similar issues? If not I will take it in, but if something simple I would rather save my time.
Senior Member
Joined: Mar 2016
Posts: 446
Likes: 134
From: Montreal, QC
2020 GLE450 4Matic AMG-Line
Here's a different take:
When running low on fluid, the rear spray will not function, only the front will as it is more critical for safety to have a clean windshield than rear glass. It also serves as an early low fluid level indicator prior to the lamp on the dash.
When running low on fluid, the rear spray will not function, only the front will as it is more critical for safety to have a clean windshield than rear glass. It also serves as an early low fluid level indicator prior to the lamp on the dash.
