P0750 on Citroen: How to Diagnose & Fix
Shift Solenoid A Malfunction
1 Citroen model · 1 documented issue · 1 critical · $600-$3,000 repair
P0750 on Citroen by model: symptoms, diagnosis and fix
C3s fitted with Citroen's automated-manual gearboxes — SensoDrive on the C3 I, then EGS6/ETG6 on later e-HDi and PureTech cars — suffer well-documented failures of the electronic clutch actuator, gear actuator and gearbox ECU. Worn actuator motors and clutch-position adaptation errors cause violently jerky gearchanges, refusal to select gears, gearbox warning messages with the box locked in gear (limp mode), and in some ECU failures a car that will not start. Specialist rebuilders describe the actuator and ECU faults as inherent design weaknesses, and repairs at a dealer can run from several hundred to several thousand pounds.
Common Symptoms
- Jerky or violent gearchanges
- Gearbox warning light or message, stuck in one gear (limp mode)
- Refusal to select gears from neutral
- Engine will not start (gearbox ECU fault)
- Juddering when pulling away
- Delayed engagement of drive or reverse
How to Fix
Have the stored fault codes read by a PSA specialist: failed clutch/gear actuators can be rebuilt or replaced and the clutch self-calibration relearned, while gearbox ECUs can be tested and rebuilt by specialists at far less than dealer replacement cost. A worn clutch must be replaced and the actuator recalibrated at the same time.
Sources for this issue (7)
- Sinspeed — Citroen/Peugeot SensoDrive Clutch & Gear Actuator Repairsarticle
- French Car Forum — SensoDrive gearbox troubleshooting (clutch + actuator most frequent failure)forum
- French Car Forum — Citroen C3 SensoDrive issue (P1755 clutch actuator coherence fault, no-start)forum
- FixMyCar — Citroen C3 Problems: SensoDrive semi-auto is the main trouble spot (2002-2009)article
- ECU Testing — Citroen C2/C3 SensoDrive Gearbox ECU common fault (2003-2011)article
- The Vehicle Check — Citroen SensoDrive Clutch Actuator Fault and Repair (C2/C3 1.1/1.4/1.6)article
- ASR Gearbox Repairs — Citroen C3 Common Gearbox Problems (ETG locked in gear, harsh shifts)article
P0750 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0750 mean on a Citroen?
P0750 stands for "Shift Solenoid A Malfunction." This code indicates the transmission control system detected a malfunction in shift solenoid 'A', one of the electrically operated valves that direct hydraulic fluid to engage gears. The computer commands these solenoids to control upshifts and downshifts, and it monitors their circuits and the resulting gear changes. When solenoid A doesn't respond electrically as expected — or the resulting shift doesn't happen correctly — this code is set. You may notice harsh, delayed, or missing shifts, or the transmission may enter a fail-safe (limp) mode. On Citroen it is documented across 1 model: C3.
What are the most common causes of P0750?
The most common causes of P0750 are: Failed or stuck shift solenoid A, Open, shorted, or chafed solenoid wiring, Corroded or loose transmission connector, Low, dirty, or degraded transmission fluid, Clogged solenoid or valve body passages, Internal valve body or hydraulic fault, Faulty transmission control module (TCM). The specific cause varies by vehicle.
How much does it cost to fix P0750 on a Citroen?
Published repair estimates on Citroen range from $600 to $3,000 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0750 on a different make?
View P0750 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.