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Problems for specific Audi A4 Quattro years:

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Repairpal verified 2006 Audi A4 Quattro problems

 

Verified for the Audi A4 Quattro

Vacuum leaks, oxygen sensor failure, and catalytic converter efficiency faults can cause the Check Engine Light to illuminate.

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Verified for the Audi A4 Quattro

Premature wear in various multi-link suspension components can cause noises that are difficult to diagnose. Worn suspension parts can also cause uneven tire wear and create steering alignment problems.

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Verified for the Audi A4 Quattro

Fuel quality must be maintained to avoid engine misfire problems; the misfires may cause the Check Engine Light to illuminate.

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Verified for the Audi A4 Quattro
Oil leaks from the camshaft drive pulleys and variable valve timing hydraulics are common. If the variable valve timing hydraulics is leaking, the Check Engine Light may illuminate from inaccurate valve timing.
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Verified for the Audi A4 Quattro

Engine oil leaks are common from the valve cover gaskets and camshaft chain tensioner gasket.

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Verified for the Audi A4 Quattro

A problem with the torque converter can cause the Check Engine Light to illuminate.

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Verified for the Audi A4 Quattro

2.0L turbo charged engines may develop a hesitation on acceleration and/or illumination of the Check Engine Light due to a failed high pressure fuel pump or a worn camshaft follower or camshaft. Our technicians tell us that whenever the high pressure fuel pump is replaced the camshaft and the follower should be checked for wear. The camshaft lobe pushes on the follower to operate the high pressure fuel pump. Frequent oil changes and use of synthetic oil may help with this wear issue.

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Verified for the Audi A4 Quattro

The water pump may fail resulting in engine overheating and possible timing belt damage. Overheating and/or timing belt failure can result in very expensive engine repairs. As a precaution, it is recommended to inspect the timing belt and water pump at regular intervals.

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Verified for the Audi A4 Quattro

An ignition coil or spark plug may fail unexpectedly resulting in an engine misfire and possible illumination of the Check Engine Light. Vehicles equipped with spark plug wires may also develop a misfire caused by a failed spark plug wire.

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Verified for the Audi A4 Quattro

A fluid leak may develop from the propeller shaft seal on the rear of the transmission. Our technicians tell us that replacing the seal will commonly correct this concern.

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Verified for the Audi A4 Quattro

Erratic turn signal operation can be a result of a failing turn signal flasher relay which will require replacement.

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Verified for the Audi A4 Quattro

The digital display portion of the instrument cluster may fail. Our technicians tell us the entire instrument cluster will need to be replaced to correct this concern.

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Verified for the Audi A4 Quattro

Our technicians recommend having the constant velocity (CV) boots and CV joints inspected at each service. Servicing torn CV boots early can prevent the need to replace the CV half shaft or CV joint.

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Verified for the Audi A4 Quattro

The Cabriolet convertible top mechanism can fail due to hydraulic fluid leaks. The fluid reservoir is a common failure.

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Verified for the Audi A4 Quattro
To avoid sludge accumulation inside the engine, our technicians recommend using the proper synthetic oil with the appropriate oil filter.
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