DTC P2458 Volkswagen, Audi, Skoda and SEAT (VW P245800): DPF Regeneration Duration, Causes and Fix
P2458, or VW P245800 as your scanner shows it (16848 or 23967 in VCDS), means a DPF regeneration ran past…
Skoda Octavia Tyre Pressure (Mk3, 2013 to 2020): Every Tyre Size, Normal and Full Load
Most Skoda Octavia Mk3 cars on 16 or 17 inch wheels run 2.2 bar (32 psi) front and rear, measured…
P0420 Code (P042000) on VW, Audi, Skoda and SEAT: Causes and Fix
The P0420 code means “catalyst system efficiency below threshold, bank 1”: the car thinks the catalytic converter (the cat) isn’t…
DSG Gearbox Problems: 7-Speed and 6-Speed Faults, Which One You Have and What It Costs
DSG gearbox problems on VW, Skoda, SEAT and Audi cars follow the gearbox, not the badge. The 7-speed dry-clutch DSG…
DTC P0087 Volkswagen, Audi, Skoda and SEAT (P008700): Fuel Rail Pressure Too Low, Causes and Fix
P0087 (P008700 on a Volkswagen, Audi, Skoda or SEAT scanner, 16471 in VCDS) is the fault code for fuel rail…
VW and Audi Tyre Pressure Warning Light: Reset by Model
A VW tyre pressure warning light, the amber tyre with an exclamation mark, means one of two things, and Audi,…
VW 1.4 TSI Engine Problems by Model: Chain, Pistons, Costs
VW 1.4 TSI engine problems depend on which of the two 1.4 TSI engines you have, and Skoda, SEAT and…
P0016 Volkswagen (P001600): Chain or Sensor? One Check First
P0016 (P001600 in full, 16400 in VCDS) is the fault code a Volkswagen, Audi, Skoda or SEAT engine stores when…
DTC P0401 Volkswagen, Audi, Skoda and SEAT (P040100): EGR Flow Insufficient, Causes and Fix
P0401 (P040100 on VW-group scans, 16785 in older VCDS logs) means the engine control unit opened the EGR valve to…
DPF Replacement Cost by Car: What a New Filter Costs, and When a Clean Will Do
In the UK in September 2026, DPF replacement cost is £600 to £1,200 fitted with a good aftermarket filter, £1,200…