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Genuine Audi Q5 Radiator Cap
Cooling Radiator Cap- Select Vehicle by Model
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For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).
4 Radiator Caps found
Audi Q5 Auxiliary Radiator Cap Part Number: 4D0-133-335
$21.49 MSRP: $34.38You Save: $12.89 (38%)Ships in 1-2 Business Days
Audi Q5 Reservoir Cap Part Number: 3B0-121-321
$24.74 MSRP: $39.59You Save: $14.85 (38%)Ships in 1-2 Business Days
Audi Q5 Reservoir Cap Part Number: 4M0-121-321-Q
$43.55 MSRP: $59.98You Save: $16.43 (28%)Ships in 1-2 Business Days
Audi Q5 Reservoir Cap Part Number: 2Q0-121-321-A
$26.86 MSRP: $42.98You Save: $16.12 (38%)Ships in 1-2 Business Days
Audi Q5 Radiator Cap
The Audi Q5 Radiator Cap maintains the ideal coolant pressure to ensure that the turbocharged SUV remains cool and confident during each drive. Relied upon by Audi owners for its solid spring and tight seal, this minor part has a major contribution to reliability since it sustains approximately 16 PSI to permit more heat absorption by the coolant before vaporization occurs and prevents warping of the aluminum block. During surge moments when climbing or being stuck in traffic, the Radiator Cap opens a safety release valve which releases the hot fluid into the expansion tank and closes it once the temperatures stabilize, which protects hoses and prevents messy spillages. Owners like the fact that the cap can fit all gasoline, diesel, or hybrid versions of the Q5 that use the longitudinal engine platform or the subsequent longitudinal engine Evo modifications, as it allows the cap to be easily replaced during routine coolant refreshes. The Audi parts catalog includes two models, a normal pressure-retaining one and a vented one, which lets trapped air escape by means of a hidden diaphragm, thus preventing vapor lock, but they are the same size so they can be installed with the same quarter-turn. This precision helps in the controlled ride and strong towing strength that has earned the Q5 credit for its versatile performance. Since a spring that is tired or a failed gasket decreases system pressure, a new Radiator Cap increases efficiency through a more stable combustion temperature and increases safety through the avoidance of unforeseen boil-overs at the grille. The rugged Audi construction, ideal compatibility and ingenious one-way gas vent are the attributes that make the Radiator Cap stand out in a saturated automotive market, and this is why Audi drivers can still count on the product season after season.
Choose original equipment manufacturer Radiator Cap for great performance and strong durability. They use Audi's official craftsmanship and high-grade materials, and meet strict quality standards. Are you looking for quality Radiator Cap at a good price? Come to our online store. We carry a wide range of genuine parts for your Audi Q5 and the prices are competitive. Each part comes with the manufacturer's warranty. You can install with confidence and get steady results. Over time, you'll save money and avoid hassle. Keep your maintenance simple and protect your vehicle with OEM parts. Get the quality your Q5 needs now.
