Oil & fluid capacities

Audi Q8 (4MN)2018 – present7 engines
2 sources citedLast reviewed 2026-11-07

Verified against the Audi Q8 Owner's Manual (part 4M8012721BF, 4M)

Engine oil capacity — by engine (with filter)
50 TDI MHEV6.4 US qt · 6.1 L · 0W-30
55 TFSI e7.6 US qt · 7.2 L · 0W-20
DHXA6.4 US qt · 6.1 L · 0W-30
45 TDI MHEV6.4 US qt · 6.1 L · 0W-30
55 TFSI8.0 US qt · 7.6 L · 0W-20
DHXC6.4 US qt · 6.1 L · 0W-30
VW EA839evo DWV7.6 US qt · 7.2 L · 0W-20
Coolant (range)10.6–13.7 US qt · 10–13 L
Wheel-nut torque118 lb-ft · 160 N·m

Per-engine engine-oil and coolant capacities for the Audi Q8 (4MN) (2018 – present), read from the manufacturer's owner's manual and cited per value. Oil figures are the service-refill quantity with a new filter; where the generation offers more than one engine the figures differ — match the row to your engine. Fill quantities differ by procedure: a drain-and-fill is usually less than a dry (overhaul) fill — confirm the method in the manual before topping up.

Per-engine fluids 7 engines

EngineEngine oil (with filter)Oil viscosityOil spec / standardCoolant
50 TDI MHEV (DPXA) 210kW6.4 US qt · 6.1 L[2]OEM workshop data0W-30[1]VW 507 00[1]13.7 US qt · 13 L[2]OEM workshop data
55 TFSI e (DCBE) 280kW7.6 US qt · 7.2 L[2]OEM workshop data0W-20[1]VW 508 00[1]10.6 US qt · 10 L[2]OEM workshop data
DHXA6.4 US qt · 6.1 L[2]OEM workshop data0W-30[1]VW 507 00[1]13.7 US qt · 13 L[2]OEM workshop data
45 TDI MHEV (DPXB) 170kW6.4 US qt · 6.1 L[2]OEM workshop data0W-30[1]VW 507 00[1]13.7 US qt · 13 L[2]OEM workshop data
55 TFSI (DCBD) 250kW8.0 US qt · 7.6 L[2]OEM workshop data0W-20[1]VW 508 00[1]10.6 US qt · 10 L[2]OEM workshop data
DHXC6.4 US qt · 6.1 L[2]OEM workshop data0W-30[1]VW 507 00[1]13.7 US qt · 13 L[2]OEM workshop data
VW EA839evo DWV7.6 US qt · 7.2 L[2]OEM workshop data0W-20[1]VW 508 00[1]10.6 US qt · 10 L[2]OEM workshop data

Other fluids & capacities 1

FluidSpec / viscosity
Brake fluid[1]VW 501 14 (DOT 4)

From the manufacturer's workshop / owner documentation for this generation. Gen-wide figures — some values can vary by trim or model year. Fill quantities differ by procedure: a transmission or axle “service” drain-and-fill is often far less than the dry capacity — always confirm the exact fill method in the manual before filling.

Drain & wheel torque 2

Wheel bolt / lug-nut torque[2]118 lb-ft · 160 N·m
Oil drain plug torque[2]22 lb-ft · 30 N·m

Related verified specs

Engine codeAudi 3.0 TFSI V6 petrol · 3.0 TDI V6 diesel · TFSI e PHEV

Full specifications, dimensions and all engines → Audi Q8 (4MN) overview

Frequently asked

What is the engine oil capacity of the Audi Q8 (4MN) (2018 – present)?
Engine oil capacity with a new filter is 8.0 US qt · 7.6 L and differs by engine — match the row in the per-engine table above to your engine code. This is the service-refill quantity, not the dry/overhaul fill; add most of it, then top up to the dipstick mark and use the viscosity grade listed above. Verified from the manufacturer's documentation and cited.
What is the coolant capacity of the Audi Q8 (4MN)?
The total cooling-system capacity (including the heater core and expansion tank) is 13.7 US qt · 13 L, varying by engine. A routine drain-and-fill replaces less than the full system, so bleed the air and re-check the level warm. Use the coolant type specified for this vehicle — mixing incompatible coolants reduces corrosion protection. Verified from the manufacturer's documentation.
What is the wheel-nut (lug) torque for the Audi Q8 (4MN)?
Wheel-nut (lug) torque is 160 Nm. Tighten in a diagonal (star) pattern in two or three even stages, on clean, dry threads, and re-check after roughly 80 km (50 miles) of driving — the most common cause of warped brake discs is uneven or over-torqued wheel nuts. Verified from the manufacturer's documentation.
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Sources

  1. Audi Q8 Owner's Manual (part 4M8012721BF, 4M)OEM owner's-manual portalAudi AG owner handbook for the Q8 (4M/4MN); oil spec/viscosity/brake/engine identityRetrieved 2026-11-07
  2. OEM workshop data — Audi Q8 (4MN)Vendor-compiled workshop data (from manufacturer service data)Per-engine oil/coolant capacities + drain & wheel-bolt torque from OEM workshop service data; each powertrain verified against the held Audi Q8 OMRetrieved 2026-11-07