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EPC stands for Electronic Power Control, and on a VW group car it means the engine management has limited what the throttle is allowed to do.
It is a symptom rather than a fault. The light is the car protecting itself, and what triggered it sits somewhere in the throttle, pedal, brake switch or sensor chain.
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- 9 regions1,700+ suburbs, we come to you
R952 to R1,104
Any diagnostic inspection, any car. Labour only, no parts.
The price depends on your car, never on which fault it turns out to be.
The throttle body is not always the culprit
EPC is the most commonly over-repaired light on VW group cars, because the throttle body is the obvious suspect and the expensive one. A failed brake light switch sets the same light for a fraction of that. Our prices for the three usual candidates:
Throttle body replacementR952 to R980
Ignition coil replacementR952 to R1,102
Finding out which one it actually isR952 to R1,104
What else is the car doing?
EPC rarely arrives alone, and what comes with it points straight at the cause.
EPC on and the car is in limp mode
Throttle authority has been withdrawn. Usually the throttle body, the pedal sensor, or the wiring between them. Drive it as little as possible. More on this.
EPC with the cruise control dead and brake lights not working
Classic brake light switch. One cheap part sets all three symptoms, and it is the single most misdiagnosed cause of an EPC light.
EPC and the engine light together, rough running
A misfire or a coil fault has tripped the protection. The EPC light here is a consequence, not the problem. More on this.
EPC comes on only sometimes, then clears
An intermittent connection or a sensor drifting out of range. These need live data while the car runs, not a code read while it idles. More on this.
Not sure which one yours is?
Tell us what the car is doing, in your own words. A mechanic reads it and calls you back within the hour. You do not need to know what is wrong, that is what we are for.
Tell us what your car is doing
What people say after we have been out
Real jobs, real faults, at homes and offices.
What we do on site
✓
Full VW group module scanEngine, gearbox, ABS and body modules all read, because EPC is frequently triggered by a fault stored somewhere other than the engine.
✓
Throttle and pedal position compared liveWhat the pedal is asking for against what the throttle is doing. A mismatch names the failed sensor directly rather than by elimination.
✓
Brake light switch testedCheap, common, and responsible for a large share of EPC lights. It gets ruled in or out early rather than last.
✓
Adaptation and basic settings where neededSome throttle faults clear properly only after a relearn. Done correctly, this avoids a part being replaced for nothing.
The kit that comes with the mechanic
A mobile mechanic is only as good as what is in the van.
Autel and Launch scan tools
Full VW group module coverage, including the body and gateway modules where EPC triggers are often stored.
Live throttle and pedal data
What the pedal asks for against what the throttle delivers, compared in real time, which names the failed sensor outright.
Multimeter, on the brake light switch circuit
The cheapest common cause gets measured early rather than being the last thing anyone checks.
Smoke machine
An unmetered air leak upsets the same throttle calculations, so it is ruled out before a throttle body is condemned.
Limp mode is the car protecting itself
If the EPC light has brought reduced power with it, the engine management has decided full throttle is not safe. Driving it hard in that state risks the very damage the limit is there to prevent.
What you get for the money
A named fault, in writing, and a price to fix it
What has failed, why, and what the repair involves. If the repair is ours you get the quote before anything is touched, and the inspection is not charged twice.
Other inspections we do
Every one of these is a mechanic coming to you. See all 22.
Engine light onR952 to R1,104Steady, flashing, or on and off again.Dashboard warning lightsR952 to R1,104A light you do not recognise.Traction control or ABSR952 to R1,104Both lights on, usually one sensor.Drivetrain malfunctionR952 to R1,104BMW and MINI, power cut back.Car not startingR952 to R1,104It cranks, or it does nothing at all.Auto electricalR952 to R1,104Dead circuits and intermittent faults.Battery going flatR1,380 to R1,633Flat every morning, battery tests fine.Steering lock faultR952 to R1,104Wheel locked, car will not start.
Where we come out to
Nine regions and more than 1,700 suburbs. Check your suburb.
JohannesburgPretoria and TshwaneCape TownDurban and eThekwiniEkurhuleni and the East RandGqeberhaPolokwaneRustenburgEmalahleni
Questions we get asked
What does EPC actually mean?
Electronic Power Control. It is the VW group warning that the engine management has found a fault in the throttle control chain and has limited what the throttle can do. It names the system, not the broken part.
Which cars get the EPC light?
Volkswagen, Audi, Seat and Skoda mainly, because it is a VW group warning. Other makes show the same kind of fault under a different name, usually a throttle or reduced power warning.
Is it safe to drive?
Gently and briefly, to somewhere safe. If the power has dropped noticeably, the car has already limited itself and should not be pushed. We come to you, which means you do not have to drive it anywhere at all.
What does the inspection cost?
R952 to R1,104 depending on the car, labour only, with no parts in that figure. The repair is quoted separately and you approve it before anything is touched.
EPC Warning Light On? Mobile Inspection At Your Door
Tell us what it is doing and where you are. Price and a slot, no phone call.