Genuine Audi Q5 Coolant Reservoir

Coolant Tank Reservoir

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6 Coolant Reservoirs found

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Audi Q5 Expansion Tank Part Number: 8K0-121-403-AC
$73.78 MSRP: $103.34
You Save: $29.56 (29%)
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Product Specifications
- Other Name: Tank; Expansion Tank, Reservoir
- Replaces: 8K0-121-403-T, 8K0-121-403-G, 8K0-121-403-H, 8K0-121-403-D, 8K0-121-403-Q
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2011-2017 Audi Q5 | Hybrid Prestige, Premium, Premium Plus | 4 Cyl 2.0 L FLEX, 4 Cyl 2.0 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.0 L GAS
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Audi Q5 Expansion Tank Part Number: 80A-121-405-AG
$114.24 MSRP: $160.00
You Save: $45.76 (29%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Tank; Expansion Tank
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2021-2023 Audi Q5 | Premium, Premium Plus, Prestige | 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV)
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Audi Q5 Expansion Tank Part Number: 8K0-121-405-S
$143.99 MSRP: $201.67
You Save: $57.68 (29%)
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Product Specifications
- Other Name: Tank; Expansion Tank, Reservoir
- Replaces: 8K0-121-405-N, 8K0-121-405-Q, 8K0-121-405-H, 8K0-121-405-F
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2009-2017 Audi Q5 | Premium, Premium Plus, Prestige | 6 Cyl 3.0 L GAS, 6 Cyl 3.2 L GAS
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Audi Q5 Reservoir Part Number: 8K0-121-405-R
$145.18 MSRP: $203.33
You Save: $58.15 (29%)
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Product Specifications
- Other Name: Tank; Reservoir
- Replaces: 8K0-121-405-E, 8K0-121-405-G, 8K0-121-405-M, 8K0-121-405-P
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2014-2015 Audi Q5 | TDI Premium Plus, TDI Prestige | 6 Cyl 3.0 L DIESEL
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Audi Q5 Expansion Tank Part Number: 80A-121-405-AQ
$193.97 MSRP: $271.67
You Save: $77.70 (29%)
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Product Specifications
- Other Name: Tank; Expansion Tank, Reservoir
- Replaces: 80A-121-405-T, 80A-121-405-L, 80A-121-405-AK, 80A-121-405-Q
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2018-2023 Audi Q5 | Premium, Premium Plus, Prestige, Titanium Premium, Titanium Premium Plus, Titanium Prestige | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV)
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Audi Q5 Auxiliary Reservoir Part Number: 5Q0-121-407-M
$60.00 MSRP: $82.65
You Save: $22.65 (28%)
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Product Specifications
- Other Name: Tank
- Replaced by: 5Q0-121-407-AA
- Replaces: 5Q0-121-407-T, 5Q0-121-407-G, 5Q0-121-407-A
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2021-2023 Audi Q5 | Premium, Premium Plus, Prestige | 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV)

Audi Q5 Coolant Reservoir

The Audi Q5 Coolant Reservoir provides consistent temperature control that ensures the turbocharged engine remains calm throughout every journey or international trip. Constructed of high-grade composite, this Coolant Reservoir is also resistant to pressure fluctuations during the swings of stop-and-go traffic conditions or mountain ascents, which is a key element of Audi's faith in long-term reliability. In the Audi, the tank is perfectly compatible across the trim lines so that regardless of whether you are driving the original 2009 release model, the updated 2013 model, or updated second-generation Sportback, each Q5 is compatible with the unit with the same mounting points and sensor ports. This reservoir is located above the radiator and allows the expansion of heated antifreeze up into the chamber, then spills back when temperatures stabilize, and helps prevent air bubbles and protect water pumps as well as aluminum blocks against hot corrosion. In editions with the pressurized expansion configuration, the cap of the Coolant Reservoir becomes the safety valve of the system, its heavier walls and gasket retain the factory recognized pressure, and the vapors, being innocuous, are pumped out through a vent, an ingenious device which minimizes the amount of leakage and makes coolant level checks an easy task. Hot and cold fill lines, which are molded, provide a visual reference for a teenage driver in a hurry or a more experienced enthusiast, allowing the driver to check the correct volume and thereby save money on the cost of repairing a broken head gasket and maintain the high standards of Audi safety. The component maintains uniform combustion temperatures by stabilizing coolant volume, enabling the Q5 powertrains to run leaner and achieve greater fuel efficiency and reduced emissions. The subsequent versions of the famous crossover bear this updated tank, which once again underlines Audi's dedication to the fusion of performance and utility, and the Coolant Reservoir silently guards each trip to remain a comfortable, protective, and efficient voyage.

Choose original equipment manufacturer Coolant Reservoir 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 Coolant Reservoir 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.