The clutch position the module commanded does not match what it measured. On an automated manual or dual-clutch box this usually means wear or an adaptation problem.
P0810 — also written PO81O, P 0810, 0810 — is the OBD-II code for clutch position control error. Same code, same fix: this page covers every spelling of it.
P0810 is a transmission fault code, typically costing £150–£2000 to put right in a UK garage.
What causes P0810?
- Clutch wear beyond adaptation range
- Failed clutch actuator
- Mechatronic fault
- Adaptations never reset after a clutch replacement
How P0810 is fixed
- Carry out clutch adaptation with a capable scan tool
- Measure clutch wear values on live data
- Replace the clutch pack or actuator if adaptation is out of range
P0810 repair cost in the UK
Most P0810 repairs land between £150–£2000 including parts and labour. The spread is wide because the cheap fix (a sensor, a hose, a leak) and the expensive fix (a major component) throw the same code — which is why a proper diagnosis before parts are bought saves the most money.
Can you drive with P0810?
Juddering take-up and possible failure to move. Do not plan long journeys.
Urgency: high.
What P0810 is telling you
A transmission code means the control unit lost confidence in the gearbox. Protecting the internals matters more to it than driveability, so it will hold a gear or drop to limp mode rather than risk damage.
On P0810 specifically — clutch position control error — the stored code records the moment that check failed, not the moment the part gave up. That gap is why two cars with the same code can need completely different repairs.
How P0810 is diagnosed properly
Each of the known causes is ruled in or out in cost order, cheapest and most likely first. On P0810 that means working through them like this:
- Clutch wear beyond adaptation range — confirmed with live data before any part is bought.
- Failed clutch actuator — commanded on and off with the diagnostic tool while its current draw and movement are watched, which separates a stuck part from a dead circuit.
- Mechatronic fault — confirmed with live data before any part is bought.
- Adaptations never reset after a clutch replacement — confirmed with live data before any part is bought.
An hour of diagnostic time on P0810 routinely saves more than it costs, because the alternative is buying the most expensive part on that list and hoping.
The repairs that actually clear P0810
- Carry out clutch adaptation with a capable scan tool
- Measure clutch wear values on live data
- Replace the clutch pack or actuator if adaptation is out of range
After the repair the code is cleared and the car is driven until the relevant readiness monitor completes, rather than handed back as soon as the light goes out. A code that has only been erased will come straight back on the next drive cycle.
What happens if P0810 is ignored
Leaving this one is the expensive choice. The protection strategy the ECU falls into is there to limit damage, and every mile driven with the fault active is a mile the engine or gearbox spends outside its designed operating window.
For reference, P0810 typically lands at £150–£2000 all-in at an independent garage in the UK — main-dealer quotes for the same job usually sit above that.
Getting P0810 looked at
Bob's Mechanical Repairs is an independent garage in Birnam, Dunkeld, Perthshire, with 32 years of Bob's experience on the tools. If P0810 is showing on your car, bring the scan results with you — we will read the live data ourselves, tell you which of the causes above it actually is, and price the repair before any work starts.