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Go Back   TDIClub Forums > TDI Model Specific Discussions Areas > VW MKVII-Mk7 Golf family including Golf Wagon (~ 2015 +)

VW MKVII-Mk7 Golf family including Golf Wagon (~ 2015 +) Discussions area for the Mk7 (2015+) Golf and Golf Wagon TDIs based on the MQB (Modularer Querbaukasten) platform.

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Old October 18th, 2019, 13:36   #1
Jbwoo
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Join Date: Oct 2018
Location: Kingston WA
Default Sunroof drains. I was warned. Got bit.

A couple of weeks ago our 15 wagon suffered the dreaded water on the drivers floorboard. Battery was almost completely dead, just enough to unlock the car. When I opened the door, there was several warnings on the indicator panel, water puddle on the monster mat. Ideas ran rampant in my mind. Got to trying to charge the battery so I could remove the Kerma tune and get it to the dealer.

Needed to purchase a new battery, it wouldn't charge. Got a larger one from a DIY here. Thanks Costco. Pulled the tune, found a picture of where the front drains were, removed the spider flaps, water pored out. BTW they are way up under the plastic cowl, and need to remove the drivers side wiper arm. Removed the fuse holder cover by the left knee area, that was full of water. Could see no water on the fuse panel or relays, but overnight the battery would drain down, resulting in no start.

At that point I knew it needed to go to dealer. Off I went. During the drive there I got multiple warnings for emissions failure.

They ended up drying everything out, multiple relay connections were water coated. And filled the DEF for me. Cleared the rear sunroof drains.

Lesson is if you have the sunroof, remove the drain flaps. Period. Brothers car ( same year ) is on my list to do.
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Old October 19th, 2019, 03:50   #2
Nuker107
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What was the number on the battery you got from Costco? Was it a interstate battery?
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Old October 19th, 2019, 17:42   #3
Jbwoo
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Interstate group H6 (48) 730cca

Item #8850276

Costco fitment code 29
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15 GSW DSG and Kerma tuned 80k miles
06 Jetta DSG BRM no mods just maintenance 275k miles
04 Dodge 2500 Built auto trans, Cummins 50hp injectors, Firepunk HPTuning 160k miles
08 E450 Motorhome V10 powa, suspension mods
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Old October 21st, 2019, 08:16   #4
Nutty 5.0
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Good advice and sorry you had the issue. I removed my rears but need to the do the fronts. Found this for front locations as I couldn't find them on mine. Now I know and will check.
https://forums.vwvortex.com/showthre...#post112677207
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Last edited by Nutty 5.0; October 21st, 2019 at 08:36. Reason: Edit; found source.
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Old October 21st, 2019, 08:45   #5
RIP TDI
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Quote:
Originally Posted by Nutty 5.0 View Post
Good advice and sorry you had the issue. I removed my rears but need to the do the fronts. Found this for front locations as I couldn't find them on mine. Now I know and will check.
https://forums.vwvortex.com/showthre...#post112677207
You don't have to go all the way over to the Vortex...
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Old October 21st, 2019, 11:08   #6
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Quote:
Originally Posted by RIP TDI View Post
Thank you!
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Old October 28th, 2019, 13:28   #7
dubStrom
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I have a slanted uphill driveway and if I back in, ALL of the water that enters around the pano goes to the front left drain. I learned that the hard way (just like OP). So I pull in forward. Problem solved now.Any leak doesn't drench the fuse box, wire bundles. The VW tech was about to replace the DEF module in front of the glove box just before he discovered the soggy mess.
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