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Audi A4 B7 2.0 TDI BRE: Engine Vibration at Low Speed, Winter Startup, and Replaced Parts Issues

inomi13 19149 10
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  • #1 17024112
    inomi13
    Level 12  
    I have audi a4 b7 2.0 TDI BRE. For a year I have been fighting the problem of car vibrations at low speed, I noticed that in winter when I start the car at -10 C, the car works evenly until it reaches the temperature. I will add that the injections, the dual mass wheel, the engine mounts have been checked and the car is still idle. I will add that the car has a fan disconnected because it burned down and because of that the air conditioning does not work and the EGR cooler was removed because you were leaky. Everything was short-circuited. Can anyone have encountered such a problem?

    Thanks in advance for your interest in the topic.
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  • #2 17024161
    icosie
    Level 34  
    Hello

    I have a similar in my Audi A4 B5 1.9 TDI. At low speed, the engine trembles that the gear lever can escape from your hand. I fought this for 1.5 years, we set the speed, the fuel hoses were changed, the injection cleaning, all filters, etc. Last year I was in the Belgium Dealership, they looked, tapped and came out that they don't know what it could be if it no engine mount, ride until it breaks. -.-

    If anyone knows something in the subject, I will gladly find out.
    Everyone says go, it will be okay, even at an ASO. : /

    best regards
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  • #3 17024170
    inomi13
    Level 12  
    I called the Audi Dealership in Krakow, the mechanic told me that the vibrations are caused by high mileage of the engine and material fatigue and that this is a normal thing in audi. For me it is a stupid explanation, I drove 4 years alpha romeo 147 1.9 JTD and had 300,000 mileage and there were no problems with engine vibrations.
  • #4 17024182
    coperfild
    Level 35  
    First, bring it to order, maybe everything will return to normal after something the designer used this pavement.
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  • #5 17024187
    inomi13
    Level 12  
    egr cooler has nothing to do because because the liquid cooler vibrations also occurred.
  • #6 17024202
    coperfild
    Level 35  
    How do you think, and someone was watching the camshaft.
  • #7 17024267
    inomi13
    Level 12  
    one thing gives me no peace why when I start the car in the cold it is even, and when it catches the temperature of 90 ° C then the vibrations start.
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  • #8 17024470
    masay1
    Level 17  
    because a "different" (higher) fuel dose is given ... and one should start with the basic diagnostics of engine parameters ... including idle stabilization;
    because without it it will be difficult for a colleague to determine something ...
  • #9 17024505
    inomi13
    Level 12  
    What do you think about how to raise it at revs, or change the dose of fuel
  • #10 17024519
    icosie
    Level 34  
    It did not help me, there were 7 approaches to regulation. Only consumption per 100 km increased by 0.2l.
  • #11 17024578
    masay1
    Level 17  
    changing the RPM (increasing) or changing the dose will not remove the fault or irregularities ...
    look for what is the reason for this state of affairs ... because even a temporary "powdering" of the fault will not remove it ...
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Topic summary

The discussion revolves around persistent engine vibrations in an Audi A4 B7 2.0 TDI BRE, particularly noticeable at low speeds and during winter startups at low temperatures. The user has already checked various components, including injectors, dual mass flywheel, and engine mounts, but the issue persists. Responses from other users suggest that high mileage and material fatigue could be contributing factors, although some express skepticism about this explanation. There are suggestions to investigate the camshaft and to perform basic diagnostics on engine parameters, including idle stabilization. The user notes that vibrations only begin after the engine reaches operating temperature, leading to speculation about fuel dosage changes affecting engine performance.
Summary generated by the language model.
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