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Audi A6: automatic gearbox problems, other common faults, and solutions

Table of content

  1. Audi A6: common problems and solutions
    1. Excessive engine oil consumption

Having troubles with your Audi A6? Check out our latest guide to learn how to spot the most common faults and find the best solution.

Audi A6: common problems and solutions

Excessive engine oil consumption

While the model is popular for its high performance and reliability, one common complaint is that it gets through engine oil pretty quickly. Oil thirsty engines require regular top ups to prevent more serious issues and damage further down the line.

If your car has a dipstick, you can use it to ensure that the oil level is way above the minimum mark in the tank. Make sure to get the correct type of engine oil for your Audi A6 as specified by the manufacturer. Otherwise, you could do more harm than good.

Automatic gearbox problems

The automatic, CVT and multitronic gearboxes have been known to have some software issues. The most common symptom is an Audi transmission that hesitates or feels “clunky” while driving. If this happens to you, you may need to take the vehicle to a local dealer to get it reprogrammed.

RIDEX 8A0002 Air filter 57mm, 212mm, 254mm, rectangular, Air Recirculation Filter
Parts Details
  • Filter type: Air Recirculation Filter
  • Shape: rectangular
  • Length [mm]: 254
  • Width [mm]: 212
  • Height [mm]: 57
  • RIDEX: Air filter
  • Item number: 8A0002
  • Our price: £ 5,35
  • Condition: New
Details
RIDEX Air filter 57mm, 212mm, 254mm, rectangular, Air Recirculation Filter
Article number: 8A0002
£ 5,35
price incl. 20% VAT, excl. delivery costs
RIDEX 8A0401 Air filter 82,3mm, 202mm, 292, 292,0mm, Filter Insert, with pre-filter
Parts Details
  • Filter type: Filter Insert
  • Length [mm]: 292, 292,0
  • Width [mm]: 202
  • Height [mm]: 82,3
  • Height 1 [mm]: 82
  • Supplementary Article / Supplementary Info Info 2: with pre-filter
  • Seal Material: Foam / Rigid Foam
  • Net Weight [g]: 352,0
  • RIDEX: Air filter
  • Item number: 8A0401
  • Our price: £ 8,88
  • Condition: New
Details
RIDEX Air filter 82,3mm, 202mm, 292, 292,0mm, Filter Insert, with pre-filter
Article number: 8A0401
£ 8,88
price incl. 20% VAT, excl. delivery costs
RIDEX 82B0007 Brake disc Front Axle, 288x25mm, 5, 5/10x112, internally vented, Uncoated
Parts Details
  • Fitting Position: Front Axle
  • Diameter [mm]: 288
  • Brake Disc Type: internally vented
  • Surface: Uncoated
  • Height [mm]: 46
  • Brake Disc Thickness [mm]: 25
  • Centering Diameter [mm]: 68
  • Number of Holes: 5
  • Hole Arrangement / Number: 5 / 10
  • Wheel Bolt Bore Ø [mm]: 15,3
  • Bolt Hole Circle Ø [mm]: 112
  • Hub Diameter 1 [mm]: 160
  • Minimum thickness [mm]: 23
  • Drilled: no
  • RIDEX: Brake disc
  • Item number: 82B0007
  • Condition: New
Details
RIDEX Brake disc Front Axle, 288x25mm, 5, 5/10x112, internally vented, Uncoated
Article number: 82B0007
£ 28,42
(Price per item)
price incl. 20% VAT, excl. delivery costs
RIDEX 82B0744 Brake disc Front Axle, 320x30mm, 5, 5/6, internally vented
Parts Details
  • Fitting Position: Front Axle
  • Diameter [mm]: 320
  • Brake Disc Type: internally vented
  • Brake Disc Thickness [mm]: 30
  • Centering Diameter [mm]: 68
  • Number of Holes: 5, 5 / 6
  • Minimum thickness [mm]: 28
  • Supplementary Article / Supplementary Info Info 2: without bolts / screws
  • usable for vehicles to construction year: 2016 / 11
  • Drilled: no
  • RIDEX: Brake disc
  • Item number: 82B0744
  • Condition: New
Details
RIDEX Brake disc Front Axle, 320x30mm, 5, 5/6, internally vented
Article number: 82B0744
£ 42,25
(Price per item)
price incl. 20% VAT, excl. delivery costs
BREMBO COATED DISC LINE 09.B969.11 Brake disc 330x22mm, 5, internally vented, Coated, High-carbon
Parts Details
  • Product line: COATED DISC LINE
  • Diameter [mm]: 330
  • Brake Disc Type: internally vented
  • Surface: Coated
  • Height [mm]: 36
  • Brake Disc Thickness [mm]: 22
  • Centering Diameter [mm]: 68
  • Number of Holes: 5
  • Minimum thickness [mm]: 20
  • Machining: High-carbon
  • Supplementary Article / Supplementary Info Info 2: with bolts / screws
  • Drilled: no
  • BREMBO: Brake disc
  • Item number: 09.B969.11
  • Condition: New
Details
BREMBO Brake disc 330x22mm, 5, internally vented, Coated, High-carbon
Article number: 09.B969.11
£ 61,83
(Price per item)
price incl. 20% VAT, excl. delivery costs

Digital display faults

Users frequently report issues with the infotainment system’s display, such as a faded display or dim lighting, or lines distorting the screen. Earlier versions of the model are typically more likely to encounter these faults. In some cases, the easiest thing to do is to replace the unit.

Brake problems

Models manufactured before 2016 are more likely to experience certain braking problems. For example, there have been frequent reports of the brakes vibrating or shaking excessively when braking at high speeds. This could mean that the brake discs are warped or that your Audi A6 needs new brake pads as the pad material can wear away and start to accumulate on the surface of the discs.

Audi a6 brake problems

The manufacturer also identified a brake servo issue on A6s made between 1 January 2012 to 27 August 2014. The servo diaphragm could rupture, reducing the braking performance.

Rear light LED problems

The Audi A6 tail lights are a well-known weak point on these vehicles. Drivers often report that they receive bulb warning notifications or the lights start to dim despite recently installing new bulbs. One possible solution is to disconnect the lights and clean the electrical connectors with an electrical contact cleaner before reconnecting. You can find the best deals on car cleaning products and other Audi A6 accessories and spare parts online.

K&N Filters 33-2866 Air filter 32mm, 165mm, 208mm, Square, Long-life Filter
Parts Details
  • Filter type: Long-life Filter
  • Shape: Square
  • Length [mm]: 208
  • Width [mm]: 165
  • Height [mm]: 32
  • K&N Filters: Air filter
  • Item number: 33-2866
  • Our price: £ 73,67
  • Condition: New
Details
K&N Filters Air filter 32mm, 165mm, 208mm, Square, Long-life Filter
Article number: 33-2866
£ 73,67
price incl. 20% VAT, excl. delivery costs
ZIMMERMANN SPORT COAT Z 100.1249.52 Brake disc 320x30mm, 10/5, 5x112, Externally Vented, Perforated, Coated, High-carbon
Parts Details
  • Product line: SPORT COAT Z
  • Diameter [mm]: 320
  • Brake Disc Type: Externally Vented, Perforated
  • Surface: Coated
  • Height [mm]: 47
  • Brake Disc Thickness [mm]: 30
  • Centering Diameter [mm]: 68
  • Rim Hole Number: 5
  • Hole Arrangement / Number: 10 / 5
  • Bolt Hole Circle Ø [mm]: 112
  • Minimum thickness [mm]: 28
  • Weight [kg]: 9,8
  • Machining: High-carbon
  • Test Mark: ECE R90 APPROVED
  • Drilled: yes
  • ZIMMERMANN: Brake disc
  • Item number: 100.1249.52
  • Condition: New
Details
ZIMMERMANN Brake disc 320x30mm, 10/5, 5x112, Externally Vented, Perforated, Coated, High-carbon
Article number: 100.1249.52
£ 101,43
(Price per item)
price incl. 20% VAT, excl. delivery costs
BREMBO COATED DISC LINE 09.B972.11 Brake disc 320x30mm, 5, internally vented, Coated, High-carbon
Parts Details
  • Product line: COATED DISC LINE
  • Diameter [mm]: 320
  • Brake Disc Type: internally vented
  • Surface: Coated
  • Height [mm]: 52
  • Brake Disc Thickness [mm]: 30
  • Centering Diameter [mm]: 68
  • Number of Holes: 5
  • Minimum thickness [mm]: 28
  • Machining: High-carbon
  • Supplementary Article / Supplementary Info Info 2: with bolts / screws
  • Drilled: no
  • BREMBO: Brake disc
  • Item number: 09.B972.11
  • Condition: New
Details
BREMBO Brake disc 320x30mm, 5, internally vented, Coated, High-carbon
Article number: 09.B972.11
£ 82,34
(Price per item)
price incl. 20% VAT, excl. delivery costs
430221 ATE 24.0130-0221.1 Brake disc 320,0x30,0mm, 5x112,0, Vented, Coated, High-carbon
Parts Details
  • Diameter [mm]: 320,0
  • Brake Disc Type: Vented
  • Surface: Coated
  • Height [mm]: 52,2
  • Brake Disc Thickness [mm]: 30,0
  • Centering Diameter [mm]: 68,0
  • Number of Holes: 5
  • Bolt Hole Circle Ø [mm]: 112,0
  • Minimum thickness [mm]: 28,0
  • Inner Diameter [mm]: 149,3
  • Machining: High-carbon
  • MAPP code available
  • Test Mark: E1 90R-02C0115 / 0566
  • Bore Ø [mm]: 15,3
  • Supplementary Article / Supplementary Info Info 2: with bolts / screws
  • Drilled: no
  • ATE: Brake disc
  • Item number: 24.0130-0221.1
  • Condition: New
Details
ATE Brake disc 320,0x30,0mm, 5x112,0, Vented, Coated, High-carbon
Article number: 24.0130-0221.1
£ 90,23
(Price per item)
price incl. 20% VAT, excl. delivery costs
70539466 MAHLE ORIGINAL LX 1780/3 Air filter 206,0mm, 157,0mm, Filter Insert
Parts Details
  • Filter type: Filter Insert
  • Height [mm]: 206,0
  • Height 1 [mm]: 196
  • Diameter [mm]: 157,0
  • Inner Diameter 2 [mm]: 70
  • Packaging length [cm]: 16,0, 17,0
  • Packaging width [cm]: 16,0, 17,00
  • Packaging height [cm]: 21,31, 21,50
  • Net Weight [g]: 324, 416
  • MAHLE ORIGINAL: Air filter
  • Item number: LX 1780/3
  • Our price: £ 11,45
  • Condition: New
Details
MAHLE ORIGINAL Air filter 206,0mm, 157,0mm, Filter Insert
Article number: LX 1780/3
£ 11,45
price incl. 20% VAT, excl. delivery costs

Fuel gauge problems

One of Audi’s most recent recalls was issued due to inaccurate fuel gauge readings. Over 150,000 vehicles were affected, including the A6 Sedan and A6 Allroad cars made between April 2018 and May 2021. The reported reason for the fault was that, due to the small distance between the fuel level sensor and the tank vent pipe, the sensor was getting stuck, preventing it from detecting the fuel level correctly.

This issue should have been resolved as the manufacturer has contacted car owners to inform them, however, if you are unsure about your own car, you can check with your local Audi dealer.

Other possible causes of a faulty fuel gauge include a blown fuse, disconnected or damaged wires, a jammed fuel gauge sending lever, and damage to the gauge sensor itself. You may notice that the low fuel warning light comes on or the readings are low despite topping up with fuel or having a full tank, or high although there is less fuel.

Suspension problems

Although the suspension is generally very reliable, the components can become worn or loose over time. The tie rods, ball joints, control arm bushings, and sway bar links should be regularly inspected for signs of wear, excessive play, or cracking.

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412178 ATE 24.0112-0178.1 Brake disc 300,0x12,0mm, 5x112,0, solid, Coated
Parts Details
  • Diameter [mm]: 300,0
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  • Brake Disc Thickness [mm]: 12,0
  • Centering Diameter [mm]: 68,0
  • Number of Holes: 5
  • Bolt Hole Circle Ø [mm]: 112,0
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BD1580 BOSCH 0 986 479 750 Brake disc 330x22mm, 5x112, Vented, Coated, High-carbon
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BD1583 BOSCH 0 986 479 753 Brake disc 320x30mm, 5x112, Vented, Coated, High-carbon
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  • BOSCH: Brake disc
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BOSCH Brake disc 320x30mm, 5x112, Vented, Coated, High-carbon
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VALEO 585018 Air filter 55mm, 213mm, 253mm, Filter Insert, with pre-filter
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  • Filter type: Filter Insert
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  • VALEO: Air filter
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VALEO Air filter 55mm, 213mm, 253mm, Filter Insert, with pre-filter
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MANN-FILTER C 17 137 x Air filter 192mm, 166, 46mm, Filter Insert, with seal
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MANN-FILTER C 15 010 Air filter 123mm, 157mm, Filter Insert
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  • MANN-FILTER: Air filter
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MANN-FILTER Air filter 123mm, 157mm, Filter Insert
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76886774 MAHLE ORIGINAL LX 1006/1D Air filter 191,6mm, 166,0mm, Filter Insert
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  • Filter type: Filter Insert
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MAHLE ORIGINAL Air filter 191,6mm, 166,0mm, Filter Insert
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S 9870 BOSCH 1 457 429 870 Air filter 57mm, 210,5mm, 252mm, Filter Insert
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  • BOSCH: Air filter
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BOSCH Air filter 57mm, 210,5mm, 252mm, Filter Insert
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ZIMMERMANN SPORT COAT Z 100.3358.52 Brake disc 330x22mm, 6/5, 5x112, internally vented, Perforated, Coated, High-carbon
Parts Details
  • Product line: SPORT COAT Z
  • Diameter [mm]: 330
  • Brake Disc Type: internally vented, Perforated
  • Surface: Coated
  • Height [mm]: 36
  • Brake Disc Thickness [mm]: 22
  • Centering Diameter [mm]: 68
  • Rim Hole Number: 5
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  • Bolt Hole Circle Ø [mm]: 112
  • Minimum thickness [mm]: 20
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  • ZIMMERMANN: Brake disc
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ZIMMERMANN Brake disc 330x22mm, 6/5, 5x112, internally vented, Perforated, Coated, High-carbon
Article number: 100.3358.52
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S 0261 BOSCH F 026 400 261 Air filter 186,6mm, 162mm, 162mm, Filter Insert
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  • BOSCH: Air filter
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BOSCH Air filter 186,6mm, 162mm, 162mm, Filter Insert
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