Description
Sanden SD7C16 air conditioner compressor for Citroen C5 II, C5 X7 and PEUGEOT 407
With 1.6 HDI 80KW 9HZ
engine
Part description
This Sanden SD7C16 air conditioner compressor is intended as a spare part for air conditioning and is used to restore the proper cooling function in the A/C system. If your air conditioner does not cool, cycles, or the compressor is noisy, replacing the compressor is often the fastest way to return comfort and the correct pressure in the circuit.
The part is mainly searched by OE/catalog numbers, therefore we list all available codes in the menu for easy pairing with the existing part in the car.
Technical information
- Manufacturer: Sanden
- Model: SD7C16
- Other numbers: 648780
Product codes
- Product codes: 9660555280, 1332, 1332F, 6453XC, 648780
Installation recommendations
Before assembly (checks of the used part, what to compare with the old piece)
- Check the compatibility of the codes on the part (min. 9660555280 / 6453XC) with the old compressor.
- Compare the design of the body, attachment and connection of the air conditioning pipe with the old piece (shape, spacing, orientation).
- Visually check that the threads, mounting ears and bearing surfaces for connecting the line are not damaged.
- If the original compressor was seized or there was a “spill” in the system, consider the need to solve the cleanliness of the circuit as well (otherwise there is a risk of rapid damage to the spare part).
Necessary tools and materials (in general, without specific extra parts)
- Common hand tools (ratchet, extensions, wrenches)
- Equipment for air conditioning service (suction/evacuation/filling) – typically in service
- Suitable seals/O-rings for air conditioning connections (according to design)
- Clean plugs for temporarily blinding the line (due to dirt and moisture)
Step-by-step assembly procedure (typical for this type of part)
- Have the refrigerant extracted from the air conditioning circuit by a professional (we work with a pressurized medium).
- Disconnect the battery (recommended when working in the engine compartment and on the wiring).
- Ensure access to the compressor according to the specific design of the car.
- Disconnect the electrical connector of the compressor (if used).
- Carefully unscrew and disconnect the A/C line from the compressor and immediately cap it to prevent dirt/moisture from entering.
- Unfasten and remove the respective belt drive according to design.
- Dismantle the fixing screws and remove the old compressor.
- Compare the old and new piece (mounting, connections, connectors), or transfer parts that are equally usable and belong to the compressor (if the design requires it).
- Mount the compressor in place and seat it evenly into the mount.
- Connect the air conditioning line with the appropriate seal, make sure the contact surfaces are clean.
- Reassemble the belt drive according to design.
- Connect the electrical connector and complete the disassembled covers/accessories.
- Evacuate the system, check for leaks and then fill with refrigerant at a service station.
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Post-assembly checks and test drive/function verification
- Verify that the air conditioner switches on and cools stably, without fluctuations.
- Check the tightness of the joints and whether there is any leakage (grease/oil traces at the joints).
- Listen to operation – unusual noises may indicate a problem with the belt, attachment or debris in the circuit.
The most common assembly mistakes + how to avoid them
- Insufficient cleanliness of the circuit after a compressor crash → risk of immediate damage; typically it is also necessary to solve the flushing/cleaning of the system according to service practice.
- Unblinded air conditioning line during work → moisture and dirt get into the system.
- Reusing old/damaged seals → leaks and loss of air conditioning performance.
- Filling without evacuation and leak check → poor function and higher risk of failure.
Reasons why the part is damaged
- Lack of oil in the air conditioning system (e.g. after a long-term leak).
- Circuit leaks and operation with low refrigerant charge.
- Impurity/metal particles in the circuit after the failure of the original compressor.
- Belt drive overload or improper function of drive accessories.
- Age and wear (bearings, internal mechanics) and long-term vibrations.
