Description
Alternator VALEO CL18 2.0 and 2.2 HDI engines for CITROEN and PEUGEOT cars
With idle pulley
Part description
The used alternator Valeo CL18 180A is intended for Citroën and Peugeot cars with 2.0 and 2.2 HDI engines. It is an important electrical component of the engine, which ensures the charging of the battery and the power supply of the on-board network during the operation of the vehicle.
The advantage of this design is the idle-running pulley, which helps absorb shocks in the drive accessories and contributes to quieter operation. Parts of this type are often searched by serial number, so when choosing, it is advisable to compare the markings on the original piece and the connecting elements.
- Part manufacturer: Valeo
- Type: CL18
- Current output: 180A
- Determination according to the documents: Citroën / Peugeot, 2.0 and 2.2 HDI engines
- Design component: idler pulley
Technical information
Product codes
- Product codes: 9664074280, 9803750980, 1648236080, 5705KR, 5702J4
- Model names: Citroën C4 PICASSO, PEUGEOT 3008 I, PEUGEOT 5008 I
Installation recommendations
Generally/typically for alternator replacement, the exact procedure may vary depending on the specific car model and engine compartment design. Below is a safe and practical general procedure for this type of part.
1) Before assembly
- Check that the manufacturer, type designation and part codes match the removed alternator.
- Compare mounts, connector, terminals, alternator body shape and pulley.
- Check the visual condition of the used part – damage to the housing, cracks, condition of threads, connectors and idler pulley.
- Verify that the pulley rotates smoothly and without excessive resistance or unusual play.
- Always disconnect the battery before starting work.
2) Necessary tools and materials
- a set of common workshop tools
- ratchet and suitable attachments
- keys to enable fixtures and accessories
- flashlight
- cleaning agent for electrical contacts
- rags or towels for cleaning the contact surfaces
3) Step-by-step assembly procedure
- Secure the vehicle against movement and disconnect the battery.
- Get access to the alternator according to the layout of the specific car, or remove the obstructing covers.
- Free the drive accessories so that the belt can be removed from the alternator pulley.
- Disconnect the alternator electrical connection and check the condition of the connectors and power wires.
- Loosen the fixing screws and remove the original alternator.
- Compare the old and new piece side-by-side – especially the mounts, connector terminals and pulley design.
- Clean the contact surfaces and the surroundings of the assembly from dirt and oxidation.
- Place the used alternator in place and first lightly secure it with the fasteners.
- Once properly seated, tighten the fasteners evenly so that the alternator sits without tension.
- Connect electrical connectors and power lines, contacts must be clean and firmly seated.
- Put the belt back on and check that it is correctly guided over the pulleys.
- Reinstall all covers and connect the battery.
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4) Post-assembly checks and test drive/function verification
- After starting, observe for unusual noises from the pulley or accessory drive.
- Check that charging is working stably and that no charging-related lights are on.
- Check that the belt runs correctly and without vibration.
- After a short test drive, visually check the fastenings and connections again.
5) The most common assembly mistakes + how to avoid them
- Part replacement by appearance instead of code – always compare part numbers and connector designs.
- Insufficient cleaning of the contacts – can cause charging problems, so clean the contacts before mounting.
- Incorrect belt routing – re-check seat before starting engine.
- Assembly without checking the pulley – check that it runs smoothly before installation.
- Working with the battery connected – always disconnect the battery first to avoid a short circuit or damage to the wiring.
Reasons why the part is damaged
- normal wear of internal parts of the alternator during long-term operation
- increased stress due to belt condition or accessory drive
- idling pulley wear or jamming
- fluctuations in the vehicle’s electrical system
- oxidation or loose electrical contacts
- intrusion of dirt, moisture or operating fluids
- improper assembly or mechanical stress on the fastening
