5 Signs You Need To
Replace Your
Volkswagen's Coolant
Temperature Sensor

Are you experiencing
any of the following
problems when driving
your VW?
Rough engine
idle
Weak engine
performance
High fuel
consumption
etc…

If so, you’re likely
dealing with a defective
coolant temperature
sensor.

Want to know more about the coolant
temperature sensor or CTS?
Please, keep reading…

Coolant
Temperature
Sensor- What Is
It?

It is a small part that has a huge impact on the
overall performance of a vehicle.

CTS essentially monitors the amount of heat a car
engine is giving off.

This data helps the
engine control unit or
ECU with the following
things;
Fuel injection
Ignition
timing
Electric cooling
fan operation
etc...

A faulty CTS can give rise
to numerous engine
problems in a vehicle.

Suspect CTS Failure In Your VW? Look For
These Signs

#1- Weak engine
performance

The CTS assists the
ECU in regulating
various aspects of engine
operation, such as;
Fuel injection
Ignition timing

So, obviously…
Your VW will
struggle to pick
up speed if its
CTS is
defective.

#2- Increased
fuel consumption

Poor gas mileage
may also signify a
problem with your
VW’s CTS.

After all, it helps the ECU to dynamically
adjust the air-fuel ratio within the

#3- Electric
cooling fan won’t
work

The ECU
depends on the
CTS to
activate/deactivat
e the electric
cooling fan.

If the CTS is
defective, the cooling
fan will behave
erratically.

#4- Rough engine
idle

Car’s RPM count
fluctuating at idle?

The cause could be a
defective coolant
temperature sensor.

Check if that’s what the case is…

#5- Activated
check engine light

Dealing with an
illuminated check
engine light is a
challenging task.

And, you would be
surprised to learn that a
faulty CTS can activate
CEL on your car.

To Be Brief…

Check your VW’s coolant
temperature sensor
periodically.

And, if you suspect a fault
in it, reach out to a trusted
car mechanic.

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