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Audi engine repair questions and answers

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  • Evann
    Evann - 2003 Audi A6 Quattro - Engine - 10/23/2014
    Why does my car shake when stationary?
    While stopped at a stop light yesterday my car began to shake but when I sped up again it goes away. It only seems to shake when stopped for any period of time. I have slightly searched for possible scenarios for the situation including bad engine mounts or off ...
     
    • Jimm
      10/23/2014 Jimm
      First step - have the stored fault codes or check engine light scanned - for free - at any local auto parts store; Advance Auto, Auto Zone, NAPA. Then, post a reply as 'add answer' with the specific code for more assistance. There may be a fault code stored in the OBD memory which may not be displayed as a check engine light.

      Possible Causes of Engine Hesitation or Stumble:

      Dirty fuel injectors (cleaning the injectors often fixes this)
      Dirty air filter (change filter)
      Dirty / clogged fuel filter (change filter)
      Bad MAP (manifold absolute pressure) sensor
      Bad TPS (throttle position) sensor
      Bad or dirty MAF (mass airflow) sensor
      Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
      Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
      Bad gasoline (fuel contaminated with water or too much alcohol)

      Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

      Dirty or worn spark plugs
      Bad plug wires
      Weak ignition coil
      Wet plug wires
  • Chappy
    Chappy - 2009 Audi A4 Quattro - Engine - 10/23/2014
    Car is using twice the amount of fuel and it has fuel in the engine oil.
    My Car has been in the Audi dealership for over 3 weeks. The engine was removed and due to oil consumption issue (pistons & Rings) The mechanic put 100km on it and it runs fine but uses twice the amount of fuel and has fuel in the engine oil. They replaced the ...
     
    0 answer
  • KeeKee78
    KeeKee78 - 2002 Audi A6 Quattro - Engine - 10/1/2014
    If the timing is set wrong whats likely to happen??
    155456 mileage -new water pump timing belt new oil sending unit new valve covers etc... symptoms are oil sensor blinks now n thermometer i suggest and car been allied low since the timing belt and water pump been put on... now the rock hams knocking hard ...
     
    0 answer
  • googy
    googy - 2005 Audi A4 Quattro - Engine - 9/18/2014
    In terms of the tsb.... are they different for the a4 Quattro than for the a4... my Quattro has many cooling problems
    I just wonder if it's the 2005 audi and maybe not the Quattro....thanks
     
    • Jimm
      9/18/2014 Jimm
      Check the list of recalls and TSBs on the AutoMD website, or contact the local dealerships for details on any TSB.
    • googy
      9/18/2014 googy
      are the tsb the same for the 2005 a4 and the 2005 a4 Quattro?
      thanks
    • Jimm
      9/18/2014 Jimm
      You will need to check the list of recalls and TSBs on the AutoMD website, or contact the local dealerships for details on any TSB. The individual TSBs either may or may not apply - to specific vehicles or options - depends on the nature and application of the TSB.
  • nikhilpatel
    nikhilpatel - 2014 Audi A4 - Engine - 9/10/2014
    Coolant reservoir showing minimum coolant level
    I am no expert in cars. I have a 2014 Audi A4 and occasionally i will look under the hood to check it out. I noticed that the coolant level is at the "minimum" line. What is the cause of this? The coolant light has not come on inside of the car.
     
    • CVO
      9/10/2014 CVO
      This vehicle is still covered under the 36,000 miles or 3 years warranty, call the Audi Dealer to schedule a warranty repair.
      CVO
      9/10/2014 nikhilpatel
      Yes i know that, but i want to know what you all think the problem is because I don't want them to top it off and have me leave
      CVO
      9/10/2014 CVO
      Possible leak points include hoses, the radiator, heater core, water pump, thermostat housing, head gasket, freeze plugs.Make a careful visual inspection of the entire cooling system, and then PRESSURE TEST the cooling system and radiator cap. A good system should hold 12 to 15 psi for 15 minutes or more with no loss in pressure.
      It is important to pressure test the radiator cap, too, because a weak cap.
  • mmoloki
    mmoloki - 1996 Audi A4 - Engine - 9/2/2014
    Why is it that my car shows water light. oil light and petrol light and all of them are on the level
    when is on and moving even when is cold. IT HAPPEN when I switch it on. It happen all the time. AFTER IT HAS stopped moving and a mechanic attended it. THE CHECK ENGINE LIGHT IS NOT ON.
     
    0 answer
  • mattmro444
    mattmro444 - 1994 Audi 100 - Engine - 8/19/2014
    I have some old parts of my oldest Audi... so do you all thing these will give me few pocket moneys !!!!!!!!!
    I have some old parts of my oldest Audi... Now I want to buy another one. So parts of all the old car will be sold by reasonable prices, do you all thing these will give me few pocket moneys !!!!!!!!! BR// MRO Supply
     
    • Jimm
      8/19/2014 Jimm
      Typically a question of supply and demand - if there is sufficient demand, you may sell the parts available. If no demand, then you have a collection of parts.
  • AutoMD Member
    AutoMD Member - 2001 Audi A6 Quattro - Engine - 8/9/2014
    Multiple cylinder misfire codesmooth
    smooth at idle but poor performance under load likecar is in limp mode. service engine light flashing
     
    • Jimm
      8/9/2014 Jimm
      First step - have the stored fault codes or check engine light scanned - for free - at any local auto parts store; Advance Auto, Auto Zone, NAPA. Then, post a reply as 'add answer' with the specific code for more assistance. There may be a fault code stored in the OBD memory which may not be displayed as a check engine light.

      Possible Causes of Engine Hesitation or Stumble:

      Dirty fuel injectors (cleaning the injectors often fixes this)
      Dirty air filter (change filter)
      Dirty / clogged fuel filter (change filter)
      Bad MAP (manifold absolute pressure) sensor
      Bad TPS (throttle position) sensor
      Bad or dirty MAF (mass airflow) sensor
      Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
      Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
      Bad gasoline (fuel contaminated with water or too much alcohol)

      Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

      Dirty or worn spark plugs
      Bad plug wires
      Weak ignition coil
      Wet plug wires
  • AutoMD Member
    AutoMD Member - 2001 Audi A6 Quattro - Engine - 7/23/2014
    How do I fix these codes?
    My audi is showing the codes P1121 and P1140 how should I fix these codes?
     
    • alex
      7/23/2014 alex
      one is sensor voltage code the other tells you its the right side o2 sensor. the low voltage sounds like either unplugged or broaken wire.
      alex
      8/20/2014 mattmro444
      Yup problem in plug or wire

      mrosupply.com
  • AutoMD Member
    AutoMD Member - 2001 Audi A6 Quattro - Engine - 7/22/2014
    How do I fix these codes?
    My audi is showing the codes P1121 and P1140 how should I fix these codes?
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2001 Audi A6 Quattro - Engine - 7/14/2014
    My Audi takes about two tries to completly start how can I fix this?
    About 8/10 my Audi takes atleast two tries to fully start. The CE light is on and the two codes that read are P1121 and P1140. I believe that both have to do with HO2 sensors and I have already had one replaced. Any suggestions to what I can do next to fix this ...
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2001 Audi A6 Quattro - Engine - 7/14/2014
    My Audi will turn but take two tries to completly start, how can I fix this?
    About 8/10 times my Audi takes two tries to start. The CE light is on and the codes that read are P1121 and P1140. Both have something to do with HO2 sensors I believe and I have already had one replaced. I was wondering what my next step should be towards fixing ...
     
    0 answer
  • AutoMD Member
    AutoMD Member - 1999 Audi A6 Quattro - Engine - 7/14/2014
    The car starts, runs fine to where I am going then will not start when I am done with the errand. Example: the car had
    not been driven for two weeks, started without problem. Attended a funeral and then would not start when going to come home. Jumped with battery cables and brought it home. Is is the battery, the alternator or ?????
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2006 Audi A4 Quattro - Engine - 7/13/2014
    When car is running, it constantly gives off high pitched whistling sound like a tea kettle boiling. What is wrong?
    Car has 95,000 miles. Piercing whistle happens more when vehicle is hot, both while driving and when stopped; occurs all the time; started 2 weeks ago. Check engine light is on yellow. Oil level is fine. I just had it throroughly checked out at Audi dealership one ...
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2001 Audi A4 - Engine - 7/8/2014
    What else could be causing this? any water or coolant i put in pours back out
    while on the freeway my car thru a coolant alarm, i pulled over before it could overheat,but any water i put in came back out. I have changed the water pump and thermostat but still the water leaks back out. looks like its coming from somewhere near water pump or ...
     
    0 answer