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Drivetrain Malfunction is BMW’s way of saying something is wrong enough that I have reduced power to protect myself. It names no part at all.
On most BMW and MINI engines it is a misfire, a boost fault or a fuel delivery problem. Which of those it is changes the repair completely.
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- 6 monthsor 6,000 km workmanship warranty
- Red SealQualified artisans, some ex-dealership
- 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.
Replacing all the coils is the shotgun approach
A drivetrain malfunction on a turbo BMW is commonly met by replacing every ignition coil on the assumption it is a misfire. Sometimes that is right. When the real cause is boost or injection, it is an expensive way of finding out:
Ignition coil replacementR952 to R1,102
Finding out which one it actually isR952 to R1,104
What happened when the message appeared?
The circumstances separate a misfire from a boost fault faster than any code does.
It appeared under hard acceleration, with a sudden loss of power
Typically boost. A split charge pipe, a wastegate fault or a turbo problem, and the car cut power the moment the pressure went wrong.
Rough running, shaking, and the engine light flashing too
An active misfire. Flashing means unburnt fuel is reaching the catalytic converter, so this is the version worth stopping for. More on this.
It comes on cold, then clears once warm
Often injection or a sensor reading out of range while cold. Live data during warm up is what catches this one.
Power is down but the car runs smoothly
Limp mode without a misfire. Usually boost, a throttle fault or a sensor the management no longer trusts. 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 BMW module scan with freeze frameThe conditions at the moment of the fault, which is what separates a boost event from a misfire without guessing.
✓
Misfire counters read per cylinderWhich cylinder, and how often. This replaces coils on evidence rather than replacing all of them on principle.
✓
Boost pressure, actual against requestedMeasured live. A split charge pipe or a wastegate fault shows up in seconds and looks nothing like a misfire.
✓
Fuel delivery checked where indicatedRail pressure and injector behaviour, so an injection fault is not treated as an ignition one.
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 BMW and MINI module coverage with freeze frame and live data, including per cylinder misfire counters.
Boost pressure measured live
Actual against requested, which separates a turbo or charge pipe fault from an ignition problem in minutes.
Smoke machine
Pressurised smoke finds a split charge pipe or a boost leak directly, rather than inferring it from a pressure shortfall.
Compression tester
Used where the misfire data points at something mechanical rather than at a coil or an injector.
A flashing engine light alongside it means stop
Flashing means raw fuel is going into the exhaust and the catalytic converter is being damaged right now. Pull over, switch off, and let us come to the car.
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.EPC warning lightR952 to R1,104VW, Audi, Seat and Skoda.Traction control or ABSR952 to R1,104Both lights on, usually one sensor.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
Which cars show Drivetrain Malfunction?
Mainly BMW and MINI. It is their wording for a protective power reduction. Other makes do the same thing and call it reduced power or limp mode.
Can I drive it like this?
Only far enough to get somewhere safe, and gently. The car has already cut power because it decided full power was not safe. Since we come to you, there is usually no need to drive it anywhere.
Is it always ignition coils?
No, and that assumption is what makes this fault expensive. Coils are a common cause but boost leaks, wastegate faults and injection problems set the same message. Live data tells them apart in minutes.
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 see it before anything is touched.
Drivetrain Malfunction? Mobile Inspection At Your Door
Tell us what it is doing and where you are. Price and a slot, no phone call.