Description
Alternator VALEO CL15 150A for Citroën and Peugeot vehicles. With freewheel pulley.
Product Overview
This Valeo CL15 150A alternator is a direct-fit replacement designed for a range of Citroën and Peugeot petrol and diesel models. It features a one-way (freewheel) pulley to reduce drive belt shock and improve durability of the belt and tensioner system. The alternator supplies up to 150 amps for the vehicle electrical system and charging of the battery, and includes the internal regulator, rectifier diodes, brushes and bearings typical for CL15 units.
Key Benefits
- High Output: 150A rating suitable for vehicles with increased electrical demand.
- Freewheel Pulley: Reduces torsional stress on the belt drive, smoother operation under stop/start and engine transient conditions.
- Direct Fit: Designed to match mounting points and electrical connectors on specified Citroën and Peugeot models for straightforward replacement.
- Commonly Searched By Part Number: Customers frequently search by the product codes listed below when looking for an exact match.
How It Is Replaced
Replacement can be performed by a competent mechanic or an experienced DIYer with basic workshop tools. Typical steps:
- Ensure The Vehicle Is Secure: Park on a level surface, apply parking brake and, if necessary, raise the vehicle safely.
- Disconnect Battery: Always disconnect the negative battery terminal before starting to avoid electrical short and protect vehicle electronics.
- Release Drive Belt Tension: Use the appropriate tool to relieve the tensioner and remove the serpentine belt from the alternator pulley.
- Disconnect Wiring: Unplug the alternator electrical connector(s) and remove the main charging cable (secure the nut/bolt to prevent loss).
- Unbolt Alternator: Remove mounting bolts and extract the alternator from its bracket. Inspect the belt, tensioner and mounting points for wear.
- Install New Alternator: Fit the new unit, secure mounting bolts to manufacturer recommended sequence, reconnect wiring and refit the belt with correct tension.
- Reconnect Battery And Test: Reconnect battery, start engine and verify charging voltage and system operation (ideally measure charging voltage at idle and under load).
Installation Recommendations
- Disconnect The Battery Before Any Work To Prevent Damage To Vehicle Electronics.
- Inspect Belt And Tensioner: A worn belt or weak tensioner will shorten the life of a new alternator — replace if necessary.
- Check Battery Condition: A failing battery can overload a new alternator; verify battery health before or immediately after replacement.
- Secure Electrical Connections: Ensure the charging cable and connector are clean and torqued correctly to avoid poor contact and heating.
- Test Charging System After Installation: Measure system voltage (typically ~13.8–14.6 V with engine running) and check for charging-related fault codes.
Reasons Why The Part Most Commonly Fails
- Worn Brushes And Slip Rings: Normal wear reduces contact and charging efficiency.
- Diode Or Rectifier Failure: Electrical shorts in the rectifier can stop charging or cause battery drain.
- Bearing Wear: Noisy or seized bearings lead to pulley failure and eventual alternator seizure.
- Voltage Regulator Fault: Internal regulator failure causes overcharging or undercharging of the battery.
- Contamination And Overheating: Oil leaks, coolant, or excessive heat reduce component life.
- Drive Belt Issues: A slipping or broken belt prevents the alternator from turning and charging the battery.
Technical Information
- Manufacturer: Valeo
- Model: Citroën Berlingo, Citroën C2, Citroën C3, Citroën C4, Citroën C4 Picasso, Citroën C5, Citroën C5 X7, Peugeot 206, Peugeot 307, Peugeot 407, Peugeot Partner
- Product Codes: 9665617780, 9646321780, 1638095180
- Additional Numbers: 5702E3, 5705AS, 5705EY, 5705NH
- Type / Specification: VALEO CL15, 150A, Freewheel (One-Way) Pulley
Additional Notes
Alternator lifespan depends on driving conditions, vehicle electrical load and maintenance. Many units function reliably for well over 100,000 km, but heat, contamination, heavy accessory use and irregular charging loads can shorten life. When replacing an alternator, it is good practice to check associated components (belt, tensioner, battery and wiring) to ensure a long service life for the new unit.
Search And Compatibility Tip
Customers often search using the OEM product codes listed above (e.g., 9665617780). Use these numbers to find exact-fit replacements for the listed Citroën and Peugeot models.
