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Go Back   TDIClub Forums > TDI Model Specific Discussions Areas > VW Passat Family (NMS and B7) TDIs (2012+)

VW Passat Family (NMS and B7) TDIs (2012+) Discussion area for the 2012+ Passat TDI (North American and rest of world versions versions). The North American model was previously codenamed NMS (New Midsize Sedan) and the version the rest of the world gets is sometimes referred to as B7.

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Old January 10th, 2015, 08:18   #46
tdiatlast
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All this excitement. How many failed heater cores have been confirmed?
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Old January 10th, 2015, 14:59   #47
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More then there ever should be!
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Old January 10th, 2015, 16:39   #48
tdiatlast
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Still awaiting some sort of proof of a plugged heater core, and not something involving the sometimes troublesome flapper motors/blend doors.
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Old January 10th, 2015, 16:51   #49
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Well I'm glad they are not charging me the total bill. But seeing as they are charging me anything, I think I'm buying the heater core. There fore should be able to retrieve the old one, right?
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Old January 10th, 2015, 16:54   #50
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Unless it's an official VAG warranty repair, you're buying the parts, and should be allowed the old parts. At least you should be allowed to see the "defective" part.
Sorry for your trouble.
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Old January 10th, 2015, 22:15   #51
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Quote:
Originally Posted by VeeDubTDI View Post
Ford had a problem with casting material in the 6.0 engine clogging up oil coolers, which in many cases lead to cascading failures of EGR coolers and head gaskets. Something similar could be happening here, but we will need someone to cut open a clogged heater core to know for sure.

If this is the cause of the problem, adding a coolant filtration system will solve the problem by catching the material in the system.
I had the same thought. If casting junk clogged up the heater core, what did it do yo my radiator and water pump? I am definitely going to press them on this on Tuesday.
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Old January 12th, 2015, 10:41   #52
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I've an appointment for mine to be replaced tomorrow, but they said I can't keep the old core.

I'm also having the fender liner/blower intake mod done at the same time, so my blower motor hopefully won't keep freezing up.
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Old January 12th, 2015, 11:00   #53
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After few days at the dealership diagnostic is clear: heater core.
Unfortunately is on back order. Also the dealer worked it out very well, provided me a loaner and said that it will be covering the repair even though it was a bit over the warranty I was explaining them that I have this issue for some time. It wasn't that obvious until this recent cold front that affected most of the country.
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Old January 12th, 2015, 11:26   #54
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If they won't give you the old core, at least get your hands on it and blow through it. You should be able to tell if there is a significant restriction or not.
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Old January 12th, 2015, 12:40   #55
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Quote:
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If they won't give you the old core, at least get your hands on it and blow through it. You should be able to tell if there is a significant restriction or not.
And have someone take a picture this and post it here...
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Old January 12th, 2015, 12:44   #56
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Quote:
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And have someone take a picture this and post it here...
I'd really like to see what's inside. Is it sludge? Is it sand? Is it a piece of plastic that got sucked in and stuck?
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Old January 12th, 2015, 14:08   #57
Not_Agn
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Thought I was doing good with only being charged the $225. But seeing dealers covering it completely had me thinking I'm going to talk to the dealer when I pick it up. Or should I just call VoA now and see what they say?
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Old January 12th, 2015, 15:03   #58
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I will ask if I can have mine after they get it fixed. Repair date is TBD, pending the parts. If they do, I will cut it in half for a closer look and pictures. If they will not give it to me, I will ask if they can cut it and let me take pics... No gaurantees, but I will definitely try to get my hands, or camera on it.
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Old January 12th, 2015, 15:47   #59
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Most warranty replaced parts must be kept by the dealer incase the manufacturer wants it shipped back for failure analysis.
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Old January 13th, 2015, 07:48   #60
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Just dropped mine off. Service tech said the inlet is on the drivers side, outlet on passenger side. Restricted flow would mean all the heat gets removed before it gets to the passenger side. Makes sense to me. Had said these heater cores are pretty small and are the smallest restriction. He has heard of a few "exploding" (his word) and leaking coolant all over the cabin floor, which is why they are replacing them. He also assured me there have been no issues with radiators.
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