Audi 8V S3 Water Pump Leaks and Replacement Cost

The Audi 8V S3, produced from 2015, 2016, 2017, 2018, 2019, 2020, and 2021, is powered by a 2.0T turbocharged four-cylinder engine. Available with a six-speed manual, six-speed DSG, or seven-speed DSG transmission, this performance sedan uses Audi’s legendary Quattro all-wheel drive (AWD) to enhance grip and responsiveness.

A vital component in the engine’s cooling system is the water pump assembly. On the 8V S3’s 2.0T engine, this pump is known to develop leaks and internal failures over time. If not addressed, these issues can cause overheating or coolant loss, potentially leading to major engine damage.

2.0T 8V S3 Water Pump Issues

The 8V S3’s water pump is located on the front of the engine block underneath the intake manifold. A proper inspection involves removing the lower engine cover and tracing the radiator hoses. The pump assembly includes an integrated thermostat, housed in a plastic casing, and is driven by the balance shaft belt. These areas are most prone to leaks and failures. Because the pump and thermostat housing are integrated, both should be replaced at the same time.

1. Coolant Leaks

   The most common problem is coolant leaking from the thermostat housing seal or where the water pump mates with the thermostat assembly.

2. Fault Codes

   In cases where visible leaks are not obvious, the system may still throw a check engine light. The most frequently reported fault code is:

• P00B7: Low coolant flow/performance

3. Overheating

   In more severe cases, a failed water pump can lead to overheating. If the coolant system pressure drops or the pump stops circulating properly, engine temperature can spike. Stop driving immediately if the temperature gauge climbs past the normal range.

Replacing the Audi 8V S3 2.0T Water Pump

Skilled DIYers can handle this repair, though it’s time-intensive and requires removal of the intake manifold. Most installations take about 6–8 hours.

We offer a video tutorial showing how to replace the water pump on a similar VW/Audi 2.0T engine using the same parts. Although not S3-specific, it closely mirrors the process. VIDEO

To replace this Water Pump you will need to

• Drain your Coolant
• Remove HPFP Hard Line
• Remove Intake Manifold
• Loosen Water pump drive belt and cover
• Remove Water Pump and Union
• Clean mounting areas
• Lubricate Water Pump union and install
• Install Water Pump and drive belt
• Reinstall Intake Manifold and associated hardware
• Fill and burp Cooling system

S3 Water Pump Replacement Cost

Water pump replacement cost depends on both parts and labor. Here's how it typically breaks down for the 8V S3.

• Part Price: Prices vary by quality. Genuine Audi parts cost more, while OE parts from manufacturers like INA offer a balance of price and quality.

Genuine Audi Parts – Dealer-branded and highest cost, but reliable.

Aftermarket – Cheaper alternatives exist but may not offer the same long-term durability.

OEM/OE Parts (Recommended) – These are made by Audi’s original suppliers but without the Audi branding. Our preferred kit uses INA, offering excellent value and longevity.

• Purchase – Genuine Audi 8V S3 Water Pump Kit
• Purchase – INA 8V S3 Water Pump Kit

• Labor Price: Expect 6–8 hours of labor. If you’re already removing the intake manifold, consider adding a carbon cleaning (~1.5 hours extra).

Independent European specialists are often the best option for value and experience. Dealers may be more expensive, depending on your area.

Maintaining Your Audi 8V S3 Water Pump

Keep an eye out for dried coolant residue and monitor the coolant level regularly. Address any overheating issues or fault codes quickly. It’s always a good idea to replace the thermostat housing together with the pump to ensure long-term reliability. DIYers can take this on with the right preparation and tools, but professional service is recommended if you’re unsure.

With proper upkeep, your Audi 8V S3 will continue delivering confident performance and driving enjoyment for years to come.

Looking for an Audi Specialist? We have locations in North Carolina and Ohio – DAP Repair

2015 Audi S3 (8V) Water Pump

2016 Audi S3 (8V) Water Pump

2017 Audi S3 (8V) Water Pump

2018 Audi S3 (8V) Water Pump

2019 Audi S3 (8V) Water Pump

2020 Audi S3 (8V) Water Pump

2021 Audi S3 (8V) Water Pump