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Go Back   TDIClub Forums > TDI Model Specific Discussions Areas > VW MKVI-A6 Golf family including Jetta SportWagen (~ 2010-2014)

VW MKVI-A6 Golf family including Jetta SportWagen (~ 2010-2014) Discussions area for A6/MkVI (2010-2014) Golf and Golf Wagons (Jetta Sportwagon in the USA).

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Old March 17th, 2017, 15:22   #1
Somename
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Join Date: Dec 2016
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TDI(s): 2012 JSW
Default Advice needed on how to get my 12 JSW TDI rolling again

I finally got a letter to schedule an appointment for buyback, but of course my JSW won't start.
Back in December actually, while I was driving, the car lost power out of blue and refused to go over 1500 rpm. I towed it home and I figured I'll just tow it to the dealer when the time to turn in came since the car would still start fine and moved albeit at 15mph max.
Fast forward to last week when I finally got notice to schedule an appointment, and the car cranks and struggles to start but no love. From what I gathered, it could be clogged turbo or vacuum line? It got all scheduled services, so I don't think fuel filter. I'm looking for any suggestions to get it started and to move a bit to turn the car in. Thank you for any advice.
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Old March 18th, 2017, 06:36   #2
Throwback7r
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Start with a VCDS Scan, see what caused the original issue. Where in IL are you located at?
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Old March 18th, 2017, 09:12   #3
ricks
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Fuel Economy: 38ish mixed, 49 highway
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Try jumping it? (For us ignorant slobs who have managed to live without a VCDS)
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Old March 19th, 2017, 08:53   #4
05GLX4MoWgn
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Quote:
Originally Posted by ricks View Post
Try jumping it? (For us ignorant slobs who have managed to live without a VCDS)
That's how I got my "totally dead" tdi running. Hooked up a jump box, and just kept it up until it started. Was not pretty, now runs ok. I should not have let it sit for 3 months.
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Old March 19th, 2017, 14:30   #5
travis45
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Bad fuel? Add cetane boost and try priming the fuel system with VCDS.
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Old March 20th, 2017, 10:50   #6
740GLE
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not going over 15mph or 1500RPM, sounds like limp mode, but no mention of and lights on the dash. Until codes are read only thing you can hope is trying to jump it without frying the starter.
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Old March 20th, 2017, 14:22   #7
ihatespeed
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Fuel Economy: 40mpg city 46 avg, 50 hwy 33 trailer
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I'm guessing you have a water/ice logged intercooler, take off the belly pan, pull the passenger side intercooler hose and melt/ mop out any water ice or sludge, your no start no warning light indication is exactly what my wife was experiencing. I would refrain from trying to start it until you verify that the intake is clear.
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Old March 21st, 2017, 16:39   #8
Somename
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Thanks for the suggestions. There's was no check engine light so not sure if it's limp mode. The battery and the starter seem okay. Can the intercooler stay clogged even while above freezing? I'll take a look once I rule out bad fuel. Does it require fuel pump priming with bad fuel? I don't really have access to VCDS, it doesn't seem to make sense to buy one now? Can I just try adding some fresh diesel? Thank you for all the help.
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Old March 22nd, 2017, 16:36   #9
Ol'Rattler
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If it was still running you could run it off of a cliff. Turbos don't clog because they only pass air.
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Old March 23rd, 2017, 15:13   #10
ihatespeed
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The intercooler can be full of water, best case it causes enough restriction to keep you from starting, worst case you suck up a slug of water and hydrolock your engine, I'd seriously pop off that hose and drain the thing.
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Old March 25th, 2017, 13:34   #11
jerrymander
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Quote:
Originally Posted by Ol'Rattler View Post
Turbos don't clog because they only pass air.
Sure, but that's assuming that all the connections to and from the turbocharger are immaculate. For all you know, there could be an entire family of raccoons in the turbo.
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