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Thread: Great mapping fiasco

  1. #1
    Junior Member
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    Feb 2019
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    Great mapping fiasco

    Apologies for 1st post waffle..I'm a bog standard golf owner with not much to talk about.

    Like many I mapped my 1.6 to give 2L ish results. Nothing new there, was with a reputable dealer etc. Key thing being this was after dieselgate fix was applied. I considered mapping before fix but when performance and economy dropped it pushed me more down this route.

    VW defended their fix all day at the time (before map), they didn't entertain initial complaint. Straight after I left VW garage the radiator fan would go like the clappers after turning off ignition, which has been persistent since. Strongly suspected they're working the cooling components harder, which is now beginning to manifest problems.

    Really I'm looking for some opinions (general thoughts?), I've formalised a complaint with VW. They've changed their language and seem a lot more accommodating than before. Have heard other 1.6 owners describe the same as me. Cooling typically locked at 90 and never above, but now runs up to 110 at random occasions which is obviously worrying.

    I'm expecting a call from a VW representative in the next few days. Would appreciate some advice, what's the best approach given map circumstance? I'm informed nobody would know since VW software was used, also no new ECU software version has been released for my vehicle. A VW tech would probs feel map performance if test driven.

    If VW did welcome investigation, I'm wondering if they would know or ask the question if mapped. I'd obviously like them to look into this as I think the cooling system has started to degrade from more stress.

    It's a tough one, opinions from anyone would be a massive help. Cheers

  2. #2
    Administrator Crasher's Avatar
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    Apr 2006
    Nottingham, England
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    If the temp gauge ever goes over 90, there is something wrong. It reads 90 at 77 and still says 90 at a real 116 so either you have a component failure causing overheating or a sensor telling fibs, to me it does not sound like anything to do with the recall as the remap has overwritten 99% of it. It is tough though, get a fault code read done.
    2003 Skoda Octavia VRS Estate. APR 98RON remap, APR R1 diverter valve, Jetex exhaust, K&N panel filter, 7.5x18 Alutec Monstr wheels with 225/40 18 Uniroyal Rainsport 3 tyres.
    2006 Polo GTI 1.8T, APR 95RON remap
    1988 Golf 2 GTI 16 valve, 2.2 with Weber Alpha injection
    1983 Golf 1 GTI 8 valve, 2 litre with Eurospec racing 42/36 head
    1972 1302LS auto 1641cc conversion

    Vile Invention

    Dark was that day when Diesel conceived his grim engine that begot you, vile invention, more vicious, more criminal than the camera even, metallic monstrosity, bale and bane of our culture, chief woe of our Commonweal. How dare the Law prohibit hashish and heroin yet license your use, who inflate all weak inferior egos? Their addicts only do harm to their own lives: you poison the lungs of the innocent, your din dithers the peaceful, and on choked roads hundreds must daily die by chance-medley. Nimble technicians, surely you should hang your heads in shame. Your wit works mighty wonders, has landed men on the Moon, replaced brains by computers, and can smithy a "smart" bomb. It is a crying scandal that you cannot take the time or be bothered to build us, what sanity knows we need, an odorless and noiseless staid little electric brougham.

    W.H. Auden (1907-1973), A Curse:

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  4. #3
    Administrator Keithuk's Avatar
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    Jun 2012
    Stoke on Trent
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    First posts normally go in introductions else you could get a free fix and we never see you again!!!

    Your car spec says 0. As we have different sub forums for different VW models.

    As suggested: You need to get your motor scanned (preferably with VAG-COM\VCDS) for any error codes logged in the ecu and post them, that will save a lot of guessing and check systems out.
    2010 Golf GTD (170) CBBB, 5 Door, Shadow Blue (P6/D5Q), Transmission Code: KXZ, Flat Tyre Indicator, Basic Protection Pack + VCDS.

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  6. #4
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    Feb 2019
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    Thanks for replies. Mine is a MK6 Golf 09 TDI S - although potential this could persist over any of range.

    I deal with a local ex VW engineer who mentioned 3 reports of similar issues after fix applied. Not had mine plugged in yet but others have yielded no code.

    I'm more wondering what would others do in my position?
    A rep tried to call me today to proceed with complaint. Maybe they know something I don't....
    Main concern is radiator fan running like mad straight after fix
    Last edited by cZr; 26-02-19 at 21:53.

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