The BOSCH battery charging unit is an important part of the electrical system of Citroën and Peugeot cars. Monitors battery charge status, controls energy flow and helps optimize alternator charging. A properly functioning unit ensures reliable engine starting, stable power supply to all electrical systems and extends battery life.

This part is especially suitable for professional auto mechanics and home repairers who are looking for a cost-effective solution for original electronics for PSA cars. The unit is ideal as a replacement for charging problems, unexpected battery discharge, frequent illumination of the charging light or diagnostic errors related to the power management system.

Technical information
Manufacturer: BOSCH
Model: Battery status / charge control unit for Citroën and Peugeot cars
Product codes: 9838135480
Other numbers: may correspond to other Bosch and PSA numbers used on identical units depending on the specific equipment and car model

Part Type: Electronic Battery State of Charge Control Unit
Location: usually in the engine compartment, near the battery (specific position may vary by model)
Use: charge control, battery status monitoring, communication with other control units in the car

Typical use in Citroën / Peugeot cars
This unit is used especially in more modern models with extended electronics and often also with the Start-Stop system, for example:

– Citroën C4 II
– Citroën C4 Picasso
– Peugeot 3008 I
– Peugeot 308 T9
– Peugeot 5008 I

The specific use always depends on the motorization and equipment, the units may differ according to the electrical installation of the given car.

Advantages of this part
– Original solution from the renowned manufacturer BOSCH
– Correct charging function and longer battery life
– Reducing the risk of problems with starting the car
– Compatibility with original Citroën / Peugeot software and diagnostics

Installation recommendations
– Before assembly, always disconnect the battery (minus pole first) to prevent a short circuit or damage to the electronics.
– Work in a dry environment, protect the unit from moisture and dirt.
– Check the connectors and wiring – they must not be corroded, damaged or loose. Any damaged connectors should be replaced or repaired.
– When removing the old unit, make a note or take a photo of the original placement and cable routing so that the new unit is installed the same way.
– Do not open or modify the unit in any way, there is a risk of permanent damage.
– After assembly, connect the battery (positive pole first) and carry out a basic check – start the engine, watch the charging lights and any error messages on the on-board computer.
– For some cars, it may be necessary to adjust or delete errors using diagnostics after replacement, so it is advisable to have a suitable diagnostic tool available.

This unit is a suitable choice for anyone who needs a functional replacement for the original part and is looking for a reliable solution for the charging and energy management systems of Citroën and Peugeot cars.