Related Products
Intercooler - Audi (5Q0-145-803-AD)
2015-2026 Audi - 5Q0-145-803-AD
- MSRP: $666.65
Review Fitment & Product Details
Details
- Brand:
- SKU:
5Q0-145-803-AD
- Other Names:
Cooler
- Description:
From 05/18/2020. From 05/18/20. TT. Without tts model. Without ttrs model. This genuine Audi Intercooler, part number 5Q0-145-803-AD, moves heat out of the engine and charge air circuits, and because modern Audi engines run tight thermal windows, a partial loss of cooling capacity shows up as performance and economy loss before it shows as overheating. It is supplied through the Audi dealer parts network and matches the component installed at the factory. Check the applications list or supply your VIN to confirm this part fits your vehicle.
- Notes: Order By VIN.
- Replaces:
5q0145803ab, 5q0145803k, 5q0145803n, 5q0145803r, 5q0145803t
California Proposition 65
WARNING: Cancer and reproductive harm - www.P65Warnings.ca.gov Pricing is valid online only and may vary in your local store
Vehicle Fitment
Vehicle Fitment
| Year | Make | Model | Body & Trim | Engine & Transmission |
|---|
Key Product Information
Additional Information
| SYMPTOMS | Common complaints that lead to 5Q0-145-803-AD being replaced: rising coolant temperature, low coolant level warnings, sweet smelling steam, a heater that blows cold, or visible pink or clear residue on hoses and joints. If several of these appear together, diagnose the assembly as a whole rather than one part. |
| TROUBLESHOOTING | Isolating the fault around 5Q0-145-803-AD: pressure test the system cold to expose seeping joints, then verify thermostat opening behavior against live coolant temperature data before replacing pumps or radiators. Compare against a known good side or a reference value wherever one is available. |
| INSTALLATION | Correct installation of this radiator and cooler (5Q0-145-803-AD) calls for a proper vacuum or bleed fill so no air pocket remains, since trapped air in these systems causes false overheating and heater performance complaints. Confirm correct operation and scan for stored faults before returning the vehicle to service. |
| MAINTENANCE | Preventive maintenance around 5Q0-145-803-AD means using the correct Audi coolant specification, never mixing coolant types, and checking hose condition and clamp tension at each service. Use fluids and parts that meet the Audi specification for the vehicle. |
| GENERAL_NOTES | Before purchasing 5Q0-145-803-AD, note that coolant color and specification vary by production era, and mixing incompatible types causes gelling that clogs the heater core and radiator. If you are unsure about fitment, provide the vehicle identification number and our parts team will confirm it. |
| FAULT_CODES | Fault codes commonly stored when this component fails, applicable to part 5Q0-145-803-AD: P0299 for underboost condition and P0111 or P0113 for intake air temperature sensor faults when the cooler is restricted or the sensor is affected. |
| REPLACEMENTS | Items typically renewed with this radiator and cooler (5Q0-145-803-AD): hose clamps, O-rings, thermostat housings, and coolant are renewed at the same time because access is shared and old seals rarely reseal. Most of the labor here is access, so replacing adjacent wear items now costs very little extra. |
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