Citroën C4 Gearbox and Transmission

Artigo atualizado em 12 de June de 2026 por João Daniel

The transmission is one of the components that most impacts the comfort, performance, and durability of the vehicle. In the Citroën C4, different versions utilize… manual, AL4 (automatic) or AT6 (6-speed automatic) transmissioneach with specific care requirements.

4.1 Types of Exchange Rates

Manual

• Present in basic versions of C4 1.6.
• Simpler and more economical to maintain.
• Technical tip:
  • Manual transmission fluid change every 50,000 km.
  • Avoid pressing the clutch pedal with your foot resting on it, as this increases premature wear.

Automatic AL4 (also called DP0)

• Classic automatic transmission used in older C4 Pallas and C4 models.
• Common problems: jerking when engaging gears, fluid overheating, internal clutch failures.
• Technical tip:
  • Change the fluid every 60,000 km with PSA-approved product.
  • If you notice jerking or delays in gear changes, take it to a specialist workshop; AL4 does not tolerate incorrect maintenance.

Automatic AT6 (6-speed)

• Used in modern C4 Lounge and Cactus THP models.
• More modern than AL4, with better performance and fuel economy.
• Technical tip:
  • Change the fluid every 60,000 km or as directed in the manual.
  • Always use fluid PSA ATF+ 6 Approved.
  • Avoid sudden starts; smooth accelerations prolong service life.

4.2 Signs of a Problem with the Transmission

• Jerks when engaging gears.
• Metallic noise or buzzing sound when accelerating.
• Transmission warning light on the dashboard.
• Gears that “don’t engage” correctly.

If any of these signs appear, don’t ignoreTaking your car to a Citroën specialist can prevent expensive repairs.

4.3 Preventive Tips for All Transmissions

1. Regular fluid changeEssential for maintaining lubrication and preventing internal wear.
2. Avoid driving with your foot on the clutch pedal. (manual) or accelerate/sudden gear changes (automatic).
3. Be careful with overheating.In long traffic jams, use the parking brake during extended stops to ease the strain on the automatic transmission.
4. Maintenance at a Citroën specialist workshop.: guarantees original parts and correct calibration.

Average lifespan of transmissions

Chapter Summary:

• The transmission is sensitive, and its maintenance directly influences the comfort and durability of the vehicle.
• Fluid changes, smooth driving, and preventative maintenance are essential.
• Recognizing signs of wear and tear prevents high costs and ensures the continued performance of your Citroën C4.