A/C Solutions BMW E28 Complete Conversion Kit

Newly redesigned for 2025! Built and engineered for the enthusiast, this conversion kit offers a complete, plug-and-play upgrade to the A/C system in the E28 to R134a using a modern Sanden compressor, CSF parallel flow condenser, R134a expansion valve, new R134a lines, and all the necessary supporting brackets. This upgrade will result in colder A/C vent temperatures, less strain on the engine, and a more efficient and durable A/C system.

Which condenser and fan should I choose?
For a complete and proper conversion, we strongly recommend using our new high-performance CSF parallel flow condenser and SPAL fan combo for the most efficient A/C system. However, if you are planning to use your original condenser and fan, select the "None" option.

What if my E28 didn't come factory with A/C?
Our products are designed to support factory A/C models; however, they can be fitted into non-A/C applications, but you will need to obtain a factory HVAC wiring harness, both interior lines, evaporator, aluminum engine accessory bracket (to mount our compressor bracket), and factory interior HVAC box with sensors, control module, thermostat, etc.

Note: BMW M535i, 535i/is, 533i, and 528e models coming end of Q1 2025!

What’s in the box?

• Genuine Sanden SD5H14 (508) compressor
• A/C Solutions Sanden compressor bracket
• CSF parallel flow condenser w/ SPAL 13" curved blade fan and hardware (optional)
  
• Low-pressure suction line (bulkhead to compressor)
• High-pressure discharge line (compressor to condenser)
• High-pressure condenser return line (condenser to drier)
• High-pressure drier return line (drier to bulkhead)
• OE R134a filter drier
• R134a expansion valve
• High-pressure cut off switch
• Gates v-belt
• R134a high-pressure adapter fitting
• Compressor mounting hardware
• Model specific R134a o-ring kit
• R134a retrofit label
• Wiring kit and misc. hardware
• Detailed installation instructions (view)

Fitment notes:

• This kit is not compatible with the 524td.
• Models fitted with fuel coolers will have to be capped and removed.
• For the 533i, BMW engine accessory bracket 64521284953 will be required to support the Sanden compressor bracket.
  
• Images may not reflect all configurations of this product.

This product requires no R&D and is easily reversible using professionally engineered components, OEM-like hardware, and durable replacement parts resulting in a trouble-free installation that can be completed in 4-6 hours by a professional. It is designed to fit both stock and euro headers while providing ample clearance around the factory oil lines and OEM brake ducting/undertray.

This kit assumes your vehicle is stock and still retains all original equipment. Proper functionality of the evaporator, wiring harness, system electronics, and HVAC sensors is/are required for a fully functional system.