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  1. #1
    6th Gear

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    Engine temps - Vagcom vs Dash

    Our A3 TDI the temp gauge on the dash is wild. I'm pretty sure the dash is naff so i can't trust what that says.
    I took it out earlier, temp from the vents were enough to melt tar off the road. But Vagcom reckoned it was only 64 degrees.
    I've changed the green sensor in the water pipe. Is there another sensor somewhere?
    Atlas Grey A4 2.5 TDI Quattro Sport.
    Mods so far: Cruise control, DIS, Heated Mirrors, Tuning box, Xenonx, Centre Arm Rest, MFSW, RNS-E, SDS and Aero Wipers.
    To do: None yet.
    Next: Auto dip rearview mirror and Folding Mirrors.

  2. # ADS
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  3. #2
    S3 TAM's Avatar
    Pocket now empty

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    I know the s3's also have a temp sender unit, which is what tells the dash the temp.

    Could be the same on yours.
    Revo Stage 2 with all the Gear
    BHP = 274 / Torque = 293




  4. #3
    "Stick a V8 in it!"

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    Theres one sensor that signal both the dash and the ECU.

    What was the dash saying when VCDS was saying 64?

    2000 A4 1.8T Sport Quattro Avant, Berry Pearl
    2000 A4 1.8T Sport Quattro Saloon, Black-ish
    1997 S4 - PPC £999 Challenge Track Car Build
    TD5 Land Rover Defender build


  5. #4
    6th Gear

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    Around 90-100ish
    Atlas Grey A4 2.5 TDI Quattro Sport.
    Mods so far: Cruise control, DIS, Heated Mirrors, Tuning box, Xenonx, Centre Arm Rest, MFSW, RNS-E, SDS and Aero Wipers.
    To do: None yet.
    Next: Auto dip rearview mirror and Folding Mirrors.

  6. #5
    "Stick a V8 in it!"

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    The dash usually sits at exactly 90c when the engine is in its normal range of operation, (ie 80-100ish)

    2000 A4 1.8T Sport Quattro Avant, Berry Pearl
    2000 A4 1.8T Sport Quattro Saloon, Black-ish
    1997 S4 - PPC £999 Challenge Track Car Build
    TD5 Land Rover Defender build


  7. #6
    6th Gear

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    I've had it working before, but then it started playing up again. I just wondered if it was a different sensor.
    Atlas Grey A4 2.5 TDI Quattro Sport.
    Mods so far: Cruise control, DIS, Heated Mirrors, Tuning box, Xenonx, Centre Arm Rest, MFSW, RNS-E, SDS and Aero Wipers.
    To do: None yet.
    Next: Auto dip rearview mirror and Folding Mirrors.

  8. #7
    S3KO4's Avatar
    4th Gear

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    option 49 on the CC shows the correct temp, don't need vagcom for that.
    S3-8L REVO stage 2, Milltek, 3" DP & custom 3" decat, RS2 spark plugs, 4 bar FPR, Green-Cotton uprated upper/lower boost hose & TIP, Front Zimmerman & Ferrodo. LCR spliter. boost gauge, smoothed AB. Aero blades, H&R 5mm spacers. Best time 14.03sec, 0-62 in 5.7sec. 207gs @ 25psi , polished inlet mani. VAGCOM 805.1

 

 

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