Category: Guides and Diagnostics

Posts related to Guides and Diagnostics

DPF cleaning cost: forced regeneration, professional cleaning or replacement. Indicative price ranges and when each one makes sense.
ECU remapping: indicative costs, real power and torque gains, what affects the price and what to be wary of. MasterTuning.
Faulty crankshaft (rpm) sensor: no start, sudden stalling when hot, codes P0335-P0340. MasterTuning diagnosis.
AdBlue pump or SCR system failure: symptoms, remaining-starts countdown, causes (crystallisation, additive quality). MasterTuning.
Faulty MAF sensor: symptoms (loss of power, smoke, consumption), the practical test by unplugging it and when to clean or replace it. MasterTuning.
Belt or chain timing drive: real intervals, wear symptoms (noise, timing faults) and what you risk if it breaks. MasterTuning advice.
Worn dual-mass flywheel: noise at idle and on switch-off, vibration, causes and when to replace it. Professional check by MasterTuning.
Slipping clutch: how to recognise it with a practical test, causes of premature wear and what to replace together. MasterTuning advice.
Failed glow plugs on diesels: symptoms (hard cold starting, smoke, preheat light), testing and replacement without breaking them. MasterTuning.
Failed injectors on common rail diesels: symptoms, return-flow and delivery tests, when to clean and when to replace them. MasterTuning diagnosis.
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