Washer fluid delay
01-02-2019, 02:56 PM
#1
Washer fluid delay
When I press the button to wash the windshield, the blades wipe dry once or twice before the washer fluid sprays. Is this normal?
i didn't realize until I had a 2019 loaner last week which thoroughly wets the windshield before the blades actuate.
thanks
i didn't realize until I had a 2019 loaner last week which thoroughly wets the windshield before the blades actuate.
thanks
01-02-2019, 04:52 PM
#2
MBWorld Fanatic!
Sometimes the obvious escapes me, so I never assume.
Good Luck.
01-02-2019, 07:46 PM
#3
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2014 E63S; AMS 100 octane ecu tune; edok tcu tune; BB intakes; dyno tuned
Same with mine ... there is a delay ... the wipers should be programmed to come in a second or two after the spray has been primed and starts spraying like on many cars...
01-02-2019, 08:16 PM
#5
MBWorld Fanatic!
Good question. I had thought it is not normal. Maybe normal has a wide range. My car does not have the delay. I was serious about the fluid level. Higher fluid level creates what is known as hydrostatic pressure. This pressure rise feeds the pump inlet. Thereby allowing for a faster “priming” of the fluid circuit. On a different older car it was sluggish when the reservoir was low.
01-02-2019, 10:26 PM
#6
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2014 E63S; AMS 100 octane ecu tune; edok tcu tune; BB intakes; dyno tuned
01-02-2019, 10:28 PM
#7
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2014 E63S; AMS 100 octane ecu tune; edok tcu tune; BB intakes; dyno tuned
Good question. I had thought it is not normal. Maybe normal has a wide range. My car does not have the delay. I was serious about the fluid level. Higher fluid level creates what is known as hydrostatic pressure. This pressure rise feeds the pump inlet. Thereby allowing for a faster “priming” of the fluid circuit. On a different older car it was sluggish when the reservoir was low.
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01-02-2019, 11:03 PM
#8
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01-02-2019, 11:05 PM
#9
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2014 E63S; AMS 100 octane ecu tune; edok tcu tune; BB intakes; dyno tuned
01-03-2019, 05:38 AM
#11
01-03-2019, 11:36 AM
#12
MBWorld Fanatic!
OK, so I am going off of memory and I must confess that it is possible mine does indeed do it as well. I think I would have noticed if it did. But maybe not. I will report back after I get a chance to try it. She's all cleaned up at the moment and I don't want to mess up the windshield. But I will in the next couple days. Rain is supposed to be coming. Ugh
01-09-2019, 02:43 PM
#13
MBWorld Fanatic!
Update
So we are currently getting dumped on here in Cali with rain so I was able to test my washer response. The first time I hit it after not using it for awhile it has a delay of about 1-1/2 wiper cycles before spraying. However, after the first time, and the system is primed, it is pretty instant.
All in all it is a non issue for me personally.
I said I would update once I was able to try it and here it is.
Cheers
All in all it is a non issue for me personally.
I said I would update once I was able to try it and here it is.
Cheers
01-09-2019, 03:27 PM
#14
01-09-2019, 04:11 PM
#15
01-09-2019, 04:12 PM
#16
So we are currently getting dumped on here in Cali with rain so I was able to test my washer response. The first time I hit it after not using it for awhile it has a delay of about 1-1/2 wiper cycles before spraying. However, after the first time, and the system is primed, it is pretty instant.
All in all it is a non issue for me personally.
I said I would update once I was able to try it and here it is.
Cheers
All in all it is a non issue for me personally.
I said I would update once I was able to try it and here it is.
Cheers
01-09-2019, 06:37 PM
#17
Member
My 2014 wagon did the same thing it ended up being the hose from the pump to the washers jets it is a complete unit with a wire built inside the hose, I was trying to put in a check valve like the old Mercedes did not realize there was a wire inside , we first replace the pump and that did not solve it. Once we put the new hose on it was like it supposed to be.
01-09-2019, 08:53 PM
#18
My 2014 wagon did the same thing it ended up being the hose from the pump to the washers jets it is a complete unit with a wire built inside the hose, I was trying to put in a check valve like the old Mercedes did not realize there was a wire inside , we first replace the pump and that did not solve it. Once we put the new hose on it was like it supposed to be.
Last edited by BlastedBilly; 01-09-2019 at 09:01 PM.
01-10-2019, 10:40 PM
#19
Member
You are correct number 22 I think it was like $160, I got my guys do it on the warranty, good friends with most of my dealership people
01-05-2023, 10:48 AM
#20
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2008 E350 (W211 @170K), 2012 ML350 (W166 @119K), 2014 E350 Sport (W212 @96K), 2015 ML350 (W166 @92K)
https://mbworld.org/forums/e-class-w...ml#post8419721
Cross-linking a solution posted later in the non-AMG forum
Cross-linking a solution posted later in the non-AMG forum
