stevenkeyte Posted May 12 Share Posted May 12 As a first-time Mercedes owner, I need guidance. I recently purchased a 2016 (66 Plate) Mercedes CLA 220D Shooting Brake approximately 2 to 2.5 months ago, and I am currently experiencing difficulties with clearing my windscreen. While activating the screenwash, the motor is audible, indicating it is functioning; nevertheless, the water pressure is insufficient, resulting in a mere trickle from the jets that fails to reach the windscreen. When the washer reservoir is full, I must depress the washer button for around 20 seconds for water to begin dispensing. Subsequently, if I rapidly push the button, I can get modest amounts of fluid on the windscreen; however, this technique becomes ineffective once the washer fluid level decreases to about three-quarters full. There looks to be 1 pip that connects and the water travels through to all of the jets, and so I've taken this off to test if the pressure is going through before the jets, and regrettably, again it's still a trickle. The washer bottle is positioned in an inconvenient location, making it inaccessible for me without a ramp for inspection. However, I attempted to access it from beneath and confirmed that there are no leaks, among other checks. I had read that they can become obstructed, which indeed occurred with an old vehicle of mine; however, the reservoir was situated in a somewhat more accessible area for resolution. I have an extensive journey to the Lake District in a few weeks, and I am concerned about my ability to adequately clear the windscreen. Does anyone possess understanding or experience with the potential issue, as I want to avoid making assumptions? Happy to send a video or two if needs be (if the community accepts them), or I can submit it to Google drive. Thank you, everyone! Quote Link to comment Share on other sites More sharing options...
Black_raven Posted May 12 Share Posted May 12 A perforated rubber grommet serves as the sealing point for the pump within the reservoir. It becomes clogged and necessitates thorough cleaning (or replacement). There are YouTube tutorials but essentially remove n/s/f wheel, loosen clips and pull back the wheel arch liner, lever the pump out of the reservoir and raise clear. Restore it to its original condition and reassemble it. Quote Link to comment Share on other sites More sharing options...
stevenkeyte Posted May 12 Author Share Posted May 12 Thanks for the insight. I have thoroughly explored YouTube in the past, but I was unable to locate any videos that explicitly showcased my car model or configuration. If you have encountered one, would you be so kind as to share it with me? I may have overlooked one or failed to search in the appropriate locations. Salutations Quote Link to comment Share on other sites More sharing options...
Black_raven Posted May 12 Share Posted May 12 It is prevalent among several models. Examine A, GLA, or B Class. Quote Link to comment Share on other sites More sharing options...
stevenkeyte Posted May 12 Author Share Posted May 12 I'll have a close look, thanks mate! Are there any other identified potentials that could cause this, or is it highly probable that the previously mentioned pump seals are responsible? Quote Link to comment Share on other sites More sharing options...
Black_raven Posted May 12 Share Posted May 12 Ninety percent of this Quote Link to comment Share on other sites More sharing options...
colinallcars Posted May 12 Share Posted May 12 There may be sediment at the bottom of the reservoir; thus, after removing the pump to drain the reservoir, insert a hose at the top and thoroughly flush the reservoir before reinstalling the pump Quote Link to comment Share on other sites More sharing options...
MotoGravity Posted May 12 Share Posted May 12 😶🌫️ Quote Link to comment Share on other sites More sharing options...
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