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  1. #1
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    Coolant problems still TDI 130

    Ive noticed the coolant takes a lot longer to get up to temp now.
    previously it was sitting just under 90 on the dash, and dropping off slowly when driving, i changed the thermostat. Occasionally it still drops while driving but the heaters stay hot.

    Ive checked channel 51 on the aircon unit and it reads a steady 75'c when warm even when the needle drops.

    How to test each sensor is working properly with vcds logs?
    I know some dashes have this fault, it did this on my last dash too though, but im sure the 75'c is too low and its another problem.

    thanks tom

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  3. #2
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    Guess what I drive...

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    Check 49 on the control, should be around 100 in day to day driving when warm.
    Silver 2002 Audi S3 225 (BAM) since March 2011.

    Mods: Badger5 2.2 TIP, Jetex filter, PCV delete, 710 DV, Standard N249 in use, R-Tech Stage 1 TiV Remap, Audi TT Pedals, Red Dogbone, Polybushed tie arms. All silicone boost pipes, Michelin PS3s, Red V6 coil packs, MK4 flat blade conversion, retrofited cruise control.
    Currently: 254bhp - 276lb/ft (174bhp/ton) as of 11/02/2013 On V-Power

  4. #3
    6th Gear

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    Ch 49 maxed out on 92'c when warmed up over a 30 mins ish drive, and stayed there when i had a spirited drive home.

  5. #4
    Vex182's Avatar
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    That sounds to me like either the temp sensor is not reading correctly or the thermostat is stuck wide open.
    Silver 2002 Audi S3 225 (BAM) since March 2011.

    Mods: Badger5 2.2 TIP, Jetex filter, PCV delete, 710 DV, Standard N249 in use, R-Tech Stage 1 TiV Remap, Audi TT Pedals, Red Dogbone, Polybushed tie arms. All silicone boost pipes, Michelin PS3s, Red V6 coil packs, MK4 flat blade conversion, retrofited cruise control.
    Currently: 254bhp - 276lb/ft (174bhp/ton) as of 11/02/2013 On V-Power

  6. #5
    6th Gear

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    Ill get a thermostat fitter first then, i need to change the coolant and a pipe anyway.
    '02 TDi 130 Sport: Mods to date: BXP 160 conversion, EGR delete, Decat, Helix SMF fast road clutch, 312mm front rotors, full DIS , CC, Xenons.
    VCDS fully registered and happy to help.
    *Need a Spare Key or Remote? SKC retrieval? Clock/ECU swap or milage correction? I am fully insured to work on your vehicle! Offering a good deal and quality service to ASN members Nationwide!*

  7. #6
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    Yeh I would check it again, pop it in cold water then boil the water and see if it open. Should of course close then as the temp drops down again. Might be just a duff one you fitted unfortunately.
    Silver 2002 Audi S3 225 (BAM) since March 2011.

    Mods: Badger5 2.2 TIP, Jetex filter, PCV delete, 710 DV, Standard N249 in use, R-Tech Stage 1 TiV Remap, Audi TT Pedals, Red Dogbone, Polybushed tie arms. All silicone boost pipes, Michelin PS3s, Red V6 coil packs, MK4 flat blade conversion, retrofited cruise control.
    Currently: 254bhp - 276lb/ft (174bhp/ton) as of 11/02/2013 On V-Power

  8. #7
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    ended up replacing the coolant temp switch. its been working fine, still a while to get up to temp, but i guess thats down to cold weather.
    '02 TDi 130 Sport: Mods to date: BXP 160 conversion, EGR delete, Decat, Helix SMF fast road clutch, 312mm front rotors, full DIS , CC, Xenons.
    VCDS fully registered and happy to help.
    *Need a Spare Key or Remote? SKC retrieval? Clock/ECU swap or milage correction? I am fully insured to work on your vehicle! Offering a good deal and quality service to ASN members Nationwide!*

  9. #8
    jojo's Avatar
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    Diesels just take longer to warm up compared to petrols from my experience.



    99' Audi S3(APY) - Brilliant Black Click>>>Going Sideways vid!
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