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Audi Q7 (4M) 2016-2022 Owner's Manual: Cooling system

Coolant

The engine cooling system is filled with a mixture of purified water and coolant additive at the factory.

This coolant must not be not changed.

The coolant level is monitored using the indicator light. However, you should occasionally check the coolant level.

Messages

The following messages may appear depending on the vehicle equipment:

Turn off engine and check coolant level. See owner's manual

The coolant level is too low.

Stop driving and switch the engine off. Check the coolant level.

Coolant temperature: too high. Please let engine run while vehicle is stationary

Let the engine run at idle for a few minutes to cool off, until the indicator light turns off.

Coolant system: malfunction! Please turn off engine

Do not continue driving, shut the engine off, and switch the ignition off. See an authorized Audi dealer or authorized Audi Service Facility for assistance.

Coolant additive

The coolant additive is made of anti-freezing and corrosion protection agents. Only add the following coolant additives mixed with distilled water.

Checking and Filling

The amount of coolant additive that needs to be mixed with water depends on the climate where the vehicle will be operated. If the coolant additive percentage is too low, the coolant can freeze and damage the engine.

Checking and Filling

Note

Checking coolant

Checking and Filling
Fig. 166 Engine compartment - Coolant expansion tank (diagram): 1 cover with release button: 2 markings

Checking the coolant level

Adding coolant

Requirement: there must be a residual amount of coolant in the expansion tank .

If you must add coolant, use a mixture of water and coolant additive. Audi recommends mixing the coolant additive with distilled water.

Coolant loss usually indicates that there is a leak.

Immediately drive your vehicle to an authorized Audi dealer or authorized Audi Service Facility and have the cooling system inspected. If the cooling system is not leaking, coolant loss can result from the coolant boiling due overheating and then being forced out of the cooling system.

WARNING

Note

Do not continue driving if the coolant expansion tank is empty. Do not add any coolant, because air could enter the cooling system and damage the engine. See an authorized Audi dealer or authorized Audi Service Facility for assistance.

Adding engine oil
Fig. 165 Engine compartment: engine oil filling opening cover (example) Observe the safety precautions > General information. Turn the engine off Open the hood Unscrew the cap for the eng ...

Brake fluid
Fig. 167 Motor compartment: cap on brake fluid reservoir Observe the safety precautions, General information. Checking the brake fluid level The brake fluid reservoir is located under a cover on the ...

Other materials:

Rear Seat Cushion Removal and Installation
Rear Seat Cushion Removal and Installation Callout Component Name 1 Rear Seat Cushion Replacement Procedure Release the rear seat center seat belts. Lift up on the front of the seat cushion at the latch locati ...

Replacement Wheels Description
Replace the wheel if any of the following conditions exist: The wheel exhibits excessive runout. The wheel is bent. The wheel is cracked. The wheel is severely rusted. The wheel is severely corroded. Note: Air leaks caused by porosity on aluminum wheels are repairable. ...

Intersection assistant
Description Fig. 123 Detected cross-traffic Fig. 124 Instrument cluster: directional display from the intersection assistant General information The intersection assistant can warn the driver of approaching cross traffic in complex intersections > fig. 123. The system monitors intersections ...

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