Get Checking and filling -> Brake fluid Guide for Volkswagen Tiguan 4 Door Third Generation (2024-2025)

NOTICE

The use of incorrect ﬂuids can cause serious malfunctions and damage to the engine.

When ﬁlling or changing ﬂuids, make sure the correct ﬂuids are added to the corresponding reservoirs.

Troubleshooting

Please read the introductory information and heed the Warnings and Notice ⇒

engine compartment.

Safety precautions for working in the

Engine coolant

The red warning light blinks. The coolant temperature is too high or the coolant level is too low.

Do not continue driving! Engine damage could result.

1. Stop the vehicle as soon as it is safe to do so ⇒ Parking.

2. Stop the engine.

3. Allow the engine to cool.

4. Check the engine coolant level on the Coolant expansion tank ⇒ Checking and ﬁlling engine coolant .

5. If the warning light does not turn off, do not continue driving or let the engine run, even if the engine coolant is at the

correct level.

6. Contact an authorized Volkswagen dealer or authorized Volkswagen Service Facility for assistance.

Brake ﬂuid

Introduction

Brake ﬂuid absorbs moisture from the air over the course of time. Too much water in the brake ﬂuid causes damage to the

brake system. Water lowers the boiling point of the brake ﬂuid. If the water content in the brake ﬂuid is too high, vapor lock ma

form in the brake system during heavy braking and full braking. Vapor lock reduces the braking efﬁciency, increases the

braking distance considerably, and can lead to a total failure of the brake system. Your own safety and the safety of others on

the road depends on your brake system functioning correctly at all times.

WARNING

Brake ﬂuid is poisonous. Contact with brake ﬂuid – in particular, if brake ﬂuid is swallowed – may result in serious injury or

death.

If you swallow brake ﬂuid, seek urgent medical help.

If you have health problems after working with brake ﬂuid, seek medical help.

Always store brake ﬂuid out of the reach of children and only within the sealed original container.

Never use empty food cans, bottles, or other containers to store brake ﬂuid, because someone could drink the

brake ﬂuid by mistake.

Avoid regular contact with brake ﬂuid to prevent damage to your skin.

Protect your skin, face, and particularly your eyes when working with brake ﬂuid.

Do not eat, drink, or smoke when working with brake ﬂuid.

Wash your skin with soap and water after working with brake ﬂuid.

461

NOTICE

Spilled or leaking brake ﬂuid will damage the vehicle's surfaces. The vehicle's paint, plastic parts, and tires may be

damaged.

Immediately wipe up any spilled or leaking brake ﬂuid that comes into contact with vehicle components.

Then rinse all vehicle parts with plenty of water.

Brake ﬂuid can pollute the environment. Collect spilled brake ﬂuid and dispose of it correctly.

Brake ﬂuid speciﬁcations

Please read the introductory information and heed the Warnings and Notice ⇒

engine compartment.

Volkswagen has developed a special brake ﬂuid that is optimized for the vehicle's brake system. For optimum performance of

Safety precautions for working in the

the brake system, Volkswagen recommends only using brake ﬂuid that complies with the VW standard 501 14.

Before using brake ﬂuid, check that the brake ﬂuid speciﬁcation on the bottle matches the vehicle requirements.

Brake ﬂuid that complies with the VW standard 501 14 can be obtained from an authorized Volkswagen dealer or authorized

Volkswagen Service Facility.

If this type of brake ﬂuid is not available and it is therefore necessary to use a different high-quality brake ﬂuid instead, a brake

ﬂuid that meets the requirements of DIN ISO 4925 or the US standard FMVSS 116 DOT 4 CLASS 6 can be used.

Not all brake ﬂuids that comply with the requirements of DIN ISO 4925 or US Standard FMVSS 116 DOT 4 CLASS 6 have the

same chemical composition. Some of these brake ﬂuids can contain chemicals that can destroy or damage components of the

vehicle brake system over time.

Brake ﬂuid that complies with the VW standard 501 14 meets the requirements of DIN ISO 4925 or the US Standard

FMVSS 116 DOT 4 CLASS 6.

Checking the Brake Fluid

Please read the introductory information and heed the Warnings and Notice ⇒

engine compartment.

Safety precautions for working in the

Preparations

1. Safely park the vehicle on a horizontal and ﬁrm surface ⇒ Parking.

2. Open the hood.

Checking the Brake Fluid Level

462

Fig. 215 In the engine compartment: cap on the brake fluid reservoir.

The brake ﬂuid reservoir can be recognized by its cap ﬁg. 215.

The brake ﬂuid level cannot be checked precisely on all models because the hood or engine components may obstruct the

view of the ﬂuid level in the reservoir.

If you cannot read the brake ﬂuid level clearly, see an authorized Volkswagen dealer or authorized Volkswagen Service

Facility for assistance. Volkswagen recommends contacting an authorized Volkswagen dealer or authorized Volkswagen

Service Facility.

If the brake ﬂuid level is not between the min. and max. marking on the brake ﬂuid reservoir, contact an authorized

Volkswagen dealer or authorized Volkswagen Service Facility ⇒

. Volkswagen recommends contacting an

authorized Volkswagen dealer or authorized Volkswagen Service Facility.

The brake ﬂuid level decreases slightly when the vehicle is being used as the brake pads wear and the brakes automatically

adjust themselves.

WARNING

A low brake ﬂuid level or unsuitable brake ﬂuid may cause the brakes to fail or may reduce braking efﬁciency. Accidents

and serious or fatal injuries could result.

Have the brake system and brake ﬂuid level checked regularly.

Be sure to use the correct brake ﬂuid.

Only use brake ﬂuid that expressly complies with the VW standard 501 14.

In the exceptional case that a brake ﬂuid that conforms to VW standard 501 14 is not available, use only a high-

quality brake ﬂuid that complies with DIN ISO 4925 CLASS 6 or the US standard FMVSS 116 DOT 4.

Changing brake ﬂuid

Have the brake ﬂuid changed regularly. An authorized Volkswagen dealer or authorized Volkswagen Service Facility can

463

provide information about the interval for changing the vehicle brake ﬂuid. Volkswagen recommends contacting an authorized

Volkswagen dealer or authorized Volkswagen Service Facility.

1. Only have brake ﬂuid added that meets the required speciﬁcations.

WARNING

Vapor lock may occur in old brake ﬂuid due to absorbed moisture during hard braking, reducing braking efﬁciency and

potentially causing total brake failure. Accidents and serious or fatal injuries could result.

Have the brake ﬂuid changed regularly.

Only have new brake ﬂuid added.

Troubleshooting

Please read the introductory information and heed the Warnings and Notice ⇒

engine compartment.

Safety precautions for working in the

Brake ﬂuid level

The red warning light turns on. The brake ﬂuid level is too low.

Do not continue driving! This could result in the brake failing.

1. Stop the vehicle immediately as soon as it is safe to do so ⇒ Parking.

2. Check the brake ﬂuid level.

3. If the brake ﬂuid level is too low, contact an authorized Volkswagen dealer or authorized Volkswagen Service Facility.

12 V vehicle battery

Introduction

The 12-volt vehicle battery is a component of the electrical system and serves to supply energy to the vehicle. During

maintenance procedures, the 12 V vehicle battery is checked and replaced if necessary.

You may only perform procedures on the electrical system yourself if you are familiar with the necessary activities and the

general safety precautions, and if the correct operating equipment and ﬂuids and suitable tools are available. Work performed

incorrectly can result in serious injuries ⇒

. Have all work performed by suitably qualiﬁed professionals. Volkswagen

recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service Facility.

Information about warning and indicator lights can be found in the troubleshooting section at the end of the chapter

⇒ Troubleshooting.

Battery switch-off in an accident with triggering of the airbag

In vehicles with a 12 V vehicle battery in their vehicle interior or luggage compartment, the electrical connection to the 12 V

vehicle battery is pyrotechnically disconnected in an accident with airbag deployment. This prevents a short circuit. For more

information on the installation location of the vehicle battery, refer to section → page , Checking the 12 V vehicle battery acid

level.

Detailed warnings for the 12 V vehicle battery

Always wear eye protection.

Battery acid is highly corrosive. Always wear protective gloves and eye protection.

Fire, sparks, open flame, and smoking are forbidden. A highly explosive mixture of gases forms when charging the 12 V

vehicle battery. Always keep children away from battery acid and the 12 V vehicle battery.

Manual.

Always heed the Owner's

WARNING

464

Checking and filling -> Brake fluid for Your Volkswagen Tiguan 4 Door Third Generation (2024-2025)

Related Topics

Checking and filling

Popular Owner Manuals

Latest Owner Manuals