SL/R230: R230 cowl around wiper arms




I ordered a replacement with Moldparts1993 on eBay, will let you guys know if that Tampa - Netherlands deal works out as it should.












MVG








1- my question above still stands, notwithstanding my fellow Dutchman’s reaction
2- I noticed that water passes between a least one wiper arm spindle and its rubber grommet (surround). Of course water then leaks down along the spindle. And hopefully not into the mechanism/bearing. Does anyone know the order number for these grommets and how they are called?
I might add some grease to the spindles, but new flexible rubber sounds like a better idea.
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I found as part number A0099979581. First online and then -after a clean up under a tap- in the grommets themselves... I don’t know if that is an MB number.




The dealer has them, so I ordered 3 wiper spindle grommets. Previously, a German dealer mistakenly replaced the wiper mechanism/motor, so that is a new part. As noted above I noticed water marks on a spindle. There’s noticeable play on the old grommets. Should I grease the spindle/new grommet (and with what)?
Last edited by Frederick NL; Feb 12, 2019 at 05:13 AM.




Last edited by Hendrik Koster; Feb 13, 2019 at 08:19 AM.




Last edited by TheSaint; Feb 13, 2019 at 12:56 PM.




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The Saint: the cowl sits under two rubber parts left and right. Plus it has three drains that spill into three ducts, pulling those apart (up) is easy. It is the only possibility to check the middle duct for dirt. Next, the cowl has a ridge, 2cm from it’s top edge, that runs from side to side. You pull that ‘up’ bit by bit, just use a finger (see pics).
Meanwhile, you have to release a slide-in coupling between an hydraulic reservoir and a fuse box. Just push it back, the ‘button’ on it is a fixed piece. Try a bit of fiddling which is the best moment to release it (not first and not last).
Of course you remove the wiper arms first. I pressed those from their conical spindles with pliers, protecting the spindle with its nut screwed on upside down and with cloth all around.




Stubborn dirt on the windscreen
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One happy wiper mechanism
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I received and replaced the rubber grommets around my wipers arms (see pictures in post above for an old one). BIG difference. The old ones were slack and hardened, the new ones sit tight around their spindle. Looks to me they’re meant to actually keep water out, where the old ones clearly failed. You might consider doing the swap in order to keep what’s under there better protected, especially the wiper mechanism.
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I greased the grommets up, both at their opening in the middle and in the surrounding groove. Perhaps the latter was a mistake, as one of them rotates along with the wiper arm now.
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After removing the black plastic cowl (I gave some tips on this earlier in this thread) I noticed an edge of old dirt on the windscreen (photo). This proved to be impossible to remove with thinner or white spirit. Thinking it could be scale I also tried vinegar, but to no avail. The stuff won’t be intimidated by anything I tried on it, so it’s still lurking at me along the edge of the cowl.
The cowl attaches to two lower situated points, so be aware of that when you pull it out. One is a lip that holds under the plastic grille of the cabin air intake, the other slides into a metal fork. The plastic looks as if it has a turning lock there, but it’s just a one piece fixture. The cowl that I replaced was broken there, understandably, so take a look first (torch!) before you loose your patience.
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The cowl has a protrusion that clicks into a slot that runs along the windscreen (see photos in a post above). A section of it sat slightly slack, so I stuck insulation tape over the whole length of it, widening the protusion by 0.2mm. It seems to do the trick.
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And while at it, why not give some TLC to those wiper arms. A WD40 clean followed by a wax buff, also on the plastic turtle shield, makes a world of difference. (Photo). Too bad they lay hidden below the bonnet again...
Last edited by Frederick NL; Feb 16, 2019 at 03:09 PM.




Trivial pursuit: the lower (black) part of the windscreen has several tiny ‘windows’ in the black masking. Some seem useful for aligning the wipers with (I wish I had noticed), but there are more of them. Does anyone know what these are for? Photo: just above wiper tip.
Last edited by Frederick NL; Feb 18, 2019 at 11:32 AM.




I thought that the tiny black "windows" just was a transition from the all black to the clear part of the windshield, Never thought of what Rudenay says that they can be for installing the winshield correct. That makes sense to me
Last edited by TheSaint; Feb 18, 2019 at 07:22 AM.




https://jalopnik.com/heres-what-thos...r-c-1791075995




https://jalopnik.com/heres-what-thos...r-c-1791075995
I really got that wrong
Last edited by Swamp_Fox; Oct 31, 2022 at 11:12 AM.




Last edited by Frederick NL; Oct 31, 2022 at 06:03 PM.


