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Thread: Audi A3 8L 1.8T poor driveability, hesitation

  1. #1
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    Audi A3 8L 1.8T poor driveability, hesitation

    Hello,
    The problem is that sometimes car starts to hesitate and won't accept accelerator pressed. Looks like one or two cylinders stops working.
    Owner said that some time ago MAF was replaced with genuine Bosch.
    I drove myself car today and it runs great. I was unable to reproduce that problems. Owner says that this problem occurs especially in rainy days when humidity is high. Fuel consumption is normal, idle is steady.
    I erased all the errors and these did not come back.

    Can be faulty wiring ? Insulation ?

    Code:
    VCDS Version: Release 15.7.4 (x64) Running on Windows 10 x64
    Data version: 20160216
    www.Ross-Tech.com
    
    Sunday,20,March,2016,19:13:57:48017
    
    Chassis Type: 8L - Audi A3/S3 (1997 > 2003)
    Scan: 01 02 03 08 15 16 17 22 35 37 45 55 56 57 75 76
     
       Mileage: 197890km-122963miles
    -------------------------------------------------------------------------------
    Address 01: Engine        Labels: 06A-906-018-AGU.lbl
       Part No: 06A 906 018 AQ
       Component: 1.8L R4/5VT MOTR HS D03  
       Coding: 04000
       Shop #: WSC 06435  
       VCID: 71E902383B128BB681-4B04
    
    4 Faults Found:
    18010 - Power Supply Terminal 30 
                P1602 - 35-10 - Voltage too Low - Intermittent
    00561 - Mixture Adaptation 
                14-10 - Adaptation Limit (Add) Exceeded - Intermittent
    17978 - Engine Start Blocked by Immobilizer 
                P1570 - 35-10 -  - Intermittent
    16514 - Oxygen (Lambda) Sensor B1 S1 
                P0130 - 35-10 - Malfunction in Circuit - Intermittent
    Readiness: N/A
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes        Labels: 1J0-907-37x-ABS.lbl
       Part No: 1J0 907 379 H
       Component: ABS/EDS 20 IE CAN  0001  
       Coding: 13504
       Shop #: WSC 06435  
       VCID: 3663F12412FCEC8E94-4B04
    
    1 Fault Found:
    00285 - ABS Wheel Speed Sensor; Front Right (G45) 
                35-10 -  -  - Intermittent
    
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC        Labels: 8L0-820-043-2D.lbl
       Part No: 8L0 820 043 D
       Component: A3 KLIMAVOLLAUTOMAT_D75  
       Coding: 03140
       Shop #: WSC 06435  
       VCID: 29592A58D342B37609-25A0
    
    3 Faults Found:
    00785 - Temp Sensor in Instrument Panel (G56) 
                30-00 - Open or Short to Plus
    01272 - Positioning Motor for Central Flap (V70) 
                41-10 - Blocked or No Voltage - Intermittent
    00792 - A/C Pressure Switch (F129) 
                31-00 - Open or Short to Ground
    
    -------------------------------------------------------------------------------
    Address 15: Airbags        Labels: 8L0-959-655-AI7.lbl
       Part No: 8L0 959 655 F
       Component: Airbag 7 Audi      0505  
       Coding: 00104
       Shop #: WSC 06435  
       VCID: 418992F84B325B3631-5140
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments        Labels: 8L0-919-xxx-17.lbl
       Part No: 8L0 919 880 E
       Component: AB-KOMBIINSTR. VDO D07   
       Coding: 04042
       Shop #: WSC 00000  
       VCID: 3C77E30C2CD036DE62-5122
    
       Subsystem 1 - Part No: IMMO
       Component: IDENTNR: AUZ7Z0W0472282         
       IMMO-IDENTNR: AUZ7Z0W0472282       
    
    1 Fault Found:
    00771 - Fuel Level Sensor (G) 
                30-10 - Open or Short to Plus - Intermittent
    
    -------------------------------------------------------------------------------
    Address 35: Centr. Locks        Labels: 8D0-862-257.lbl
       Part No: 8L0 862 257 G
       Component: ZV-Pumpe, DWA, Funk D06  
       Coding: 13130
       Shop #: WSC 06313  
       VCID: 3979FA1823E203F679-4F06
    
    4 Faults Found:
    01370 - Alarm triggered by Interior Monitoring 
                35-00 -  - 
    01368 - Alarm triggered by Luggage Compartment Switch 
                35-00 -  - 
    01366 - Opened Due to Crash Signal 
                35-00 -  - 
    00956 - Key 2 
                09-00 - Adaptation Limit Surpassed
    
    -------------------------------------------------------------------------------
    Address 45: Inter. Monitor        Labels: 4B0-951-173.lbl
       Part No: 8L0 951 173 
       Component: Innenraumueberw.    D04  
       Coding: 00001
       Shop #: WSC 06435  
       VCID: 6ED319442A2C944E9C-4B1C
    
    3 Faults Found:
    01377 - Ultra Sonic Sensor for Alarm System; Left (G170) 
                27-00 - Implausible Signal
    01380 - Alarm triggered by Anti-Theft Sensor; Rear Left 
                35-00 -  - 
    01383 - Alarm triggered by Anti-Theft Sensor; Front Right 
                35-00 -  - 
    
    End-------------------------(Elapsed Time: 03:40)--------------------------

  2. #2
    NostraJackAss Jack@European_Parts's Avatar
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    OXS oxygen sensor heater circuits are faulty with sporadic short, and will if not already, damage the ecu if not fused or replaced immediately!
    European Parts Emporium/Performance / Immobilizer Solutions EPE
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    Above Magic! No Written record, AUTO-SCAN or Appointment = NO HELP!
    www.FixMyEuro.com <<<<<CLICK HERE! or vwemporium@aol.com ( JPPSG & Unverified members need not PM me & Please don't email or call facility for free tech support...use the forum )
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  4. #3
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    Will check that aswell. As I imagine wires near sensor might be damaged/kinked and driving on wet surface brings water on sensor what causes shorts and impact ECU work.
    Thanks Jack.

  5. #4
    NostraJackAss Jack@European_Parts's Avatar
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    I think the fact it went dead POTS on the TV it would be a good idea to unplug them immediately because it doesn't take long to smoke up an ecu.

    If you find you need a set of sensors with an ecu, we have you covered so please let us know.
    European Parts Emporium/Performance / Immobilizer Solutions EPE
    Certified Master Trained NY/BAR/BAD 7076062/ASE/SAE/NASTF Legal Factory Authorized/Licensed GeKo/FaZit # 403738
    Specializing in Custom Services IE: "welding-fabrication" / EPA-SMOG Update or Pass-Thru-Programming / Data Transfer / Immobilizers & OEM Quality Parts
    Above Magic! No Written record, AUTO-SCAN or Appointment = NO HELP!
    www.FixMyEuro.com <<<<<CLICK HERE! or vwemporium@aol.com ( JPPSG & Unverified members need not PM me & Please don't email or call facility for free tech support...use the forum )
    Getting you CONTROL again of your property - TAKE IT! In Conjunction with.........

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