Dibs_h Posted September 13, 2011 Report Share Posted September 13, 2011 Last night leaving a carpark the car felt like it had stalled - that sort of bang\judder - it didn't tho. Looking at the dash the ESP light was solid, pushing the button didn't do anything and trying to get it above 2000rpm - the engine light would flash. Parked up and switched the car off. Put the key back in and expecting a few noises and then silence - a weird noise could be heard. Later I found out that the noise is the ABS pump, sort of coming on\off. Removed the key - blipped the fob to lock and then unlock, put the key back in the ignition and the weird ABS pump noise could still be heard & it didn't stop. At which point, I thought sod it and started the car. No ESP light and it revved normally - no engine light and no weird ABS pump noise either. Getting home, plugged in VCDS and the following came up, Monday,12,September,2011,23:34:47:46626 VCDS Version: Release 10.6.4 Address 03: ABS Brakes Labels: 8E0-614-517.lbl Control Module Part Number: 8E0 614 517 Component and/or Version: ABS/ESP front 3429 Software Coding: 04255 Work Shop Code: WSC 06435 VCID: E5CBCE9E55F1 1 Fault Found: 18258 - Powertrain Data Bus: Missing Message from ECU P1850 - 35-10 - - - Intermittent No other error codes anywhere else. Cleared it and it drove into work fine. Anyone have any thoughts? The one thing I will be doing this evening is popping the ECU cover and checking for water in the bottom as it happened some time ago (the fans were staying on) and there was around half an inch of water in the bottom. Replaced one of the relays as the contacts were corroded. IIRC, one of the relays under the ECU is the ECU relay, so wondering whether that may be wet or have corroded contacts and it's time to replace. Cheers Dibs Link to comment Share on other sites More sharing options...
Dibs_h Posted September 13, 2011 Author Report Share Posted September 13, 2011 Opened up the ECU box and guess what - about 1/2 inch of water in the bottom with the relays piss wet thru. Dried it all out, with hopefully no more issues. Annoying thing is that the box and cover have no cracks and the bolts\screws were pretty tight, so Lord knows how the water got in there. Dibs Link to comment Share on other sites More sharing options...
Tipex Posted September 14, 2011 Report Share Posted September 14, 2011 Drill a hole in bottom so it can drain out next time it gets wet. Link to comment Share on other sites More sharing options...
Dibs_h Posted September 14, 2011 Author Report Share Posted September 14, 2011 Drill a hole in bottom so it can drain out next time it gets wet. Was thinking about that last night, would end up moving the problem from 1 place to another? Did great difficulty removing the cowl (the trim at the bottom of the screen). Just ended up working around it. Any ideas how one does remove it? Cheers Dibs Link to comment Share on other sites More sharing options...
Dibs_h Posted September 14, 2011 Author Report Share Posted September 14, 2011 Just been wondering how on earth water would get in the ECU box. Googling (& searching the forum) brought up the rubber grommets\bungs under the battery tray & servo - so will be having a look this evening to see how much water is sitting above those, with a view to removing the bungs\grommets to save the issue from re-occurring. Link to comment Share on other sites More sharing options...
Dibs_h Posted September 15, 2011 Author Report Share Posted September 15, 2011 Well had a look in\around the bottom of the battery tray and there was barely 1/2 inch of water in there. Both drains\grommets were draining freely. Even used a SnakeCam to have really good look and no blockage\silt or anything. Undid the coolant tank and removed the one under the battery tray anyway - will do the other one, next time it's on a lift. No wiser really as to how water got into the ECU box. Looking at the design of the grommet - there is absolutely no way it could prevent any fumes from going up into the Plenum. Can post up a picture of the one I removed, if someone's interested. Dibs Link to comment Share on other sites More sharing options...
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