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PointedThree :  Vans, Trucks, SUVs and Other Forums : G-Class : water damaged ECU... uh oh

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water damaged ECU... uh oh
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Posted 2/28/2026 10:48 PM
imjustdave
Regular


Date registered: Feb 2012
Location: Bonney Lake Washington USA
Vehicle(s): 2004 G500, 2014 Audi Q7 TDI, 2006 Ram 3500.
Posts: 79
50
water damaged ECU... uh oh

I went to drive the G and nothing key wasn't even recognized

found the ecu fuse blown 7.5 amp put s new one in and the poof. we'll I found water dripping on to the ecu.

so I need to figure out why I have water leaking inside and how difficult a replacement ECU is going to be

thoughts?

2004 g500
#246230
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Posted 3/9/2026 12:31 AM
Otiswesty
Administrator




Date registered: Jun 2007
Location: Portland, Oregon
Vehicle(s): 463.241, 461.213
Posts: 3040
2000
RE: water damaged ECU... uh oh

I'm guessing the water could be coming from around the windshield and but I'm actually not sure where the ECU is located on a 2004.

If it is dried out it may function normally or send out to an ECU repair shop.
Hope you get it sorted soon.
#246233 - in reply to #246230
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