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Change Car Glow Plugs

Intermediate 0h45–1h30 ~75–150£
Estimated time 0h45–1h30
Estimated labour cost ~75–150£
Difficulty Intermediate
Vehicles
Allroad 1997-2005 14
  • 1.9 TDI Diesel (AFN)
  • 1.9 TDI Diesel (AJM)
  • 1.9 TDI Diesel (AVF)
  • 1.9 TDI Diesel (AVG)
  • 1.9 TDI Diesel (AWX)
  • 2.5 V6 TDI Diesel (AFB)
  • 2.5 V6 TDI Diesel (AKE)
  • 2.5 V6 TDI Diesel (AKN)
  • 2.5 V6 TDI Diesel (AYM)
  • 2.5 V6 TDI Diesel (BAU)
  • 2.5 V6 TDI Diesel (BCZ)
  • 2.5 V6 TDI Diesel (BDG)
  • 2.5 V6 TDI Diesel (BDH)
  • 2.5 V6 TDI Diesel (BFC)
Allroad 2000-2005 3
  • 2.5 V6 TDI Diesel (AKE)
  • 2.5 V6 TDI Diesel (BAU)
  • 2.5 V6 TDI Diesel (BCZ)
Allroad 2011-2018 28
  • 2.0 TDI Diesel (CGLC)
  • 2.0 TDI Diesel (CGLD)
  • 2.0 TDI Diesel (CGLE)
  • 2.0 TDI Diesel (CNHA)
  • 2.0 TDI Diesel (CSUD)
  • 2.0 TDI Diesel (CSUE)
  • 2.0 TDI Diesel (DDCA)
  • 2.0 TDI Diesel (DDCB)
  • 2.0 TDI Diesel (DDDA)
  • 3.0 TDI Diesel (CDUC)
  • 3.0 TDI Diesel (CDUD)
  • 3.0 TDI Diesel (CGQB)
  • 3.0 TDI Diesel (CKVB)
  • 3.0 TDI Diesel (CKVC)
  • 3.0 TDI Diesel (CLAA)
  • 3.0 TDI Diesel (CLAB)
  • 3.0 TDI Diesel (CRTD)
  • 3.0 TDI Diesel (CRTE)
  • 3.0 TDI Diesel (CRTF)
  • 3.0 TDI Diesel (CTCB)
  • 3.0 TDI Diesel (CTCC)
  • 3.0 TDI Diesel (CVUA)
  • 3.0 TDI Diesel (CVUB)
  • 3.0 TDI Diesel (CZVA)
  • 3.0 TDI Diesel (CZVB)
  • 3.0 TDI Diesel (CZVC)
  • 3.0 TDI Diesel (CZVD)
  • 3.0 TDI Diesel (CZVF)

What is the role of Audi Allroad glow plugs?

Glow plugs are used in diesel engines to preheat the combustion chamber before starting, particularly in cold weather. Unlike petrol engines that use spark plugs to ignite the fuel, diesel engines rely on compression ignition. Modern glow plugs also remain active after starting to reduce emissions and noise during the warm-up phase.

When should you change your Audi Allroad glow plugs?

Generally, glow plugs last between 80,000 and 160,000 km. Symptoms of failing glow plugs include: difficulty starting in cold weather, white or grey exhaust smoke on start-up, rough idle during warm-up, the glow plug warning light remaining illuminated, and increased fuel consumption.

How do I know if the Audi Allroad glow plugs need changing?

Via the EOBD diagnostic system, faulty glow plugs will trigger fault codes (typically P0380–P0384 for glow plug circuit faults). Individual glow plug resistance can be measured with a multimeter (typically 0.5–2 ohms for a good plug).

Is it difficult to change Audi Allroad glow plugs?

Difficulty level 3/5: intermediate. Glow plugs can seize in the cylinder head over time due to heat and corrosion, making removal difficult and risking breakage. Key steps: warm the engine first, apply penetrating oil, use the correct glow plug socket, unscrew carefully (do not force — a broken glow plug requires specialist extraction).

3 models covered

Model Year Range Engines covered Fuel
Allroad 1997-2005 1997-2005 1.8 20V Turbo Petrol (AWT), 1.9 TDI Diesel (AFN), 1.9 TDI Diesel (AJM), 1.9 TDI Diesel (AVF), 1.9 TDI Diesel (AVG), 1.9 TDI Diesel (AWX), 2.0 20V Petrol (ALT), 2.4 V6 30V Petrol (AMM), 2.4 V6 30V Petrol (ASM), 2.4 V6 30V Petrol (BDV), 2.5 V6 TDI Diesel (AFB), 2.5 V6 TDI Diesel (… Diesel, Petrol
Allroad 2000-2005 2000-2005 2.5 V6 TDI Diesel (AKE), 2.5 V6 TDI Diesel (BAU), 2.5 V6 TDI Diesel (BCZ), 2.7 V6 Bi-Turbo Petrol (ARE), 2.7 V6 Bi-Turbo Petrol (BES), 4.2 V8 Petrol (BAS) Diesel, Petrol
Allroad 2011-2018 2011-2018 1.8 TFSI Petrol (CYGA), 2.0 TDI Diesel (CGLC), 2.0 TDI Diesel (CGLD), 2.0 TDI Diesel (CGLE), 2.0 TDI Diesel (CNHA), 2.0 TDI Diesel (CSUD), 2.0 TDI Diesel (CSUE), 2.0 TDI Diesel (DDCA), 2.0 TDI Diesel (DDCB), 2.0 TDI Diesel (DDDA), 2.0 TFSI Hybrid Electricity,Petrol (CHJA+EAFA), … Diesel, Electricity, Petrol