Audi A5 Coupe Radiator: Specs, Fitment & Common Faults
On the A5, related Audi models have genuinely had confirmed water pump recalls, with problems documented occurring between 30,000 and 70,000 miles.
Illustration for editorial purposes
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The Part That Keeps Everything Else From Cooking
Unglamorous as it is, the Audi A5 Coupe's cooling system sits behind nearly every serious engine failure that isn't just ordinary wear — and one that went unaddressed for too long. Noticing early warning signs here is a small cost against a potentially very large one.
Audi A5 Coupe Radiator: OEM Part Number
| Manual gearbox, all engines | Standard radiator with no transmission cooling circuit — genuinely simpler than the DSG/S-tronic equivalent |
|---|---|
| DSG/S-tronic (automatic), all engines | Main radiator remains largely the same core, but the car additionally has a separate oil-to-water heat exchanger for the gearbox mounted into the cooling circuit — confirmed as a genuinely different part from the radiator, so "the radiator" alone doesn't cover the whole DSG/S-tronic cooling system |
| Higher-power/performance engines | Larger-capacity radiator core to handle the increased heat load from these more powerful, more highly boosted engines — not a straightforward swap from the standard engine's radiator despite similar mounting points |
Radiator specification varies between the four-cylinder TFSI/TDI engines and the six-cylinder S5/RS5 given their different cooling demands. Quattro all-wheel-drive versions may also differ from front-wheel-drive equivalents given the additional driveline cooling requirements.
Audi A5 Coupe Radiator: What It Does
On the Audi A5 Coupe, engine coolant sheds its heat into the passing air via the radiator, which is what keeps engine temperature in a safe working range. On automatics, it frequently pulls double duty cooling the transmission fluid through its own internal circuit — a detail that makes getting the exact part number right especially important.
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A Genuinely Useful Piece of Context Worth Knowing About Water Pump Issues — Audi A5 Coupe Radiator
If you're facing a coolant leak or overheating concern, this is genuinely worth knowing: related Audi models have had confirmed recalls addressing water pump issues that could cause coolant to leak from the pump housing, with problems on this platform documented occurring anywhere from 30,000 to 70,000 miles.
It's also genuinely worth knowing an important clarification: genuine overheating caused directly by a failed water pump is actually quite rare, more often stemming from warped cylinder heads or a weakened head gasket left over from a previous overheating event.
Audi A5 Coupe Radiator: Faults, DIY Difficulty & Aftermarket Advice
These are the same regardless of make or model — see our full Radiator Guide for the three common failure modes, confirming fitment against your VIN, and OEM vs aftermarket guidance.
More Audi Radiator
The same part, covered across other Audi models.