2019 Audi SQ5 · Engine & cooling
Coolant loss from the V6 coolant pump
Repeated coolant loss on a V6 SQ5 needs an active-leak check before any pump replacement.
What the reviewed source says
Start with the documented condition, not a parts guess.
Audi published a diagnostic procedure for coolant loss on 2018 to 2024 SQ5 models with the V6 TFSI engine. It tells technicians to locate the leak precisely and warns that a small trace in the pump drip cup can be normal. A reproducible leak, rather than residue alone, is needed before replacing a component.
Words owners may use
Does this match the moment?
Symptoms in the pattern
- Coolant level falls repeatedly
- Coolant warning lamp appears
- A confirmed wet leak is found at the coolant pump area
- Dried coolant residue may be visible in the engine bay
Vehicles and scope
- 2018 to 2024 Audi SQ5
- V6 TFSI engine
- All bulletin criteria and the exact leak location must match
Manufacturer position
What the official procedure directs
Audi tells technicians to clean and dry the area before checking the level at idle and higher engine speed. A pressure test and pump vacuum-line check then identify whether a component is faulty.
Audi's bulletin is based on vehicle configuration and confirmation of an active leak, not a stated mileage threshold.
Original evidence
Open the documents behind this page.
Repair paths and safe checks
Separate the diagnosis from the action.
Confirm the exact leak source
Have the cooling system inspected under Audi's published procedure. It combines a pressure test with a pump vacuum-line check and allows replacement only after the leak source is confirmed.
Residue in the pump drip cup by itself is not proof that the pump must be replaced.
What owners reported
Did this repair fix the same symptom on your car?
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Log the cold coolant level
When the engine is completely cold and the vehicle is level, photograph the reservoir level and note any warning date. Repeat without opening a hot system.
Never open a pressurized or hot cooling system.
What owners reported
Did this repair fix the same symptom on your car?
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Useful before authorizing work
Read the method beside the problem
These guides explain the safety and evidence checks that apply to this problem file.
Bulletin, recall or warranty?
Three official looking documents can describe the same bad part while creating very different rights. The document number, VIN scope and remedy language matter more than what someone called it at the service counter.
Read guide ↗When a car is unsafe
A warning light does not always mean the same thing, but weak brakes or smoke leave little room for experimentation. Damaged tires and certain recall instructions can do the same.
Read guide ↗Coolant keeps disappearing
Repeated top ups are evidence of a fault, not routine maintenance. Record the cold level and get the leak located before overheating turns diagnosis into engine repair.
Read guide ↗More for this model
Other reviewed Audi SQ5 conditions
2018 to 2022 Audi SQ5 · Electrical & software
Electrical or software fault may disable vehicle functions
A liquid spill in the rear seat, or water ingress from an insufficient body seam underneath the vehicle may allow liquid to penetrate the gateway control module, causing it to shutdown.
2018 to 2019 Audi SQ5 · Body & exterior
Loose rear wheel-arch trim
A protruding rear wheel-arch cover or fresh wind noise can signal the loose trim addressed by Audi recall 66K8.
2025 Audi SQ5 · Safety restraints
Seat belt may not restrain an occupant
The driver and front passenger seat belts may have been manufactured incorrectly, and fail to properly restrain occupants during a crash.