SI 0095
For technical personnel only!
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SERVICE
I n f o r m at i o n
Regulating Throttle Failure
in the VW Touran, Golf V, Audi A3 with 2.0 TDI engine
Vehicle Product: Regulating throttle
Audi A3 2.0 TDI PIERBURG No. Replacement for O.E. No.*
VW Touran 2,0 TDI 7.14393.26.0 7.14393.11.0/.16.0/.20.0 038128063G
VW Golf V 2.0 TDI
Possible complaints:
Indication of Emission, Workshop
on the multifunction display
Engine temperature increases
Error light is on constantly
Shutdown shuddering after
shutting down the engine
View into the engine compartment of
These complaints may be due to a defec- the Touran
tive or damaged regulating throttle. Emphasised in green: EGR valve
Emphasised in red: regulating throttle
Functions of the regulating throttle1
The pressure difference alone between
the exhaust and the intake side will be
inadequate for the high exhaust gas
return rates required in connection with
Diesel vehicles.
In order to increase the vacuum, control Close-up view of the regulating
bodies are fitted in the intake manifold throttle (emphasised in red)
MS Motor Service International GmbH 0208 EN
for precisely controlling the exhaust gas
return rates.
When shutting down the engine, the 1
In practice a number of different terms
regulating throttle is closed early so as are used for regulating throttles, like
to avoid any shutdown shuddering. throttle valve, Diesel valve, or intake-
manifold throttle. The designation used by Product view
VOLKSWAGEN is intake manifold flap. of the regulating
throttle
The right of changes and deviating pictures is reserved. Assignment and usage, refer to the each case current catalogues, TecDoc CD respectively systems based on TecDoc.
* The reference numbers given are for comparison purposes only and must not be used on invoices to the consumer.
www.ms-motor-service.com
MS Motor Service International GmbH 74196 Neuenstadt Germany
Kolbenschmidt Pierburg Group
SI 0095
For technical personnel only!
Page 2/2
Further information
The regulating throttle and the engine fan
are protected by the same fuse. When this
fuse blows, the engine fan will also stop
running the engine temperature can
increase.
Possible manufacturer-specific error
codes can be, for example: Regulating EGR valve
Fault code P2102 throttle
Throttle Actuator Control Motor Circuit
Fault code 19557
Motor for Intake Manifold Flap
Fault code 17075
Engine coolant blower motor
Remedy
With the aid of an engine tester perform
an actuator diagnosis. Through the Exhaust gas return (EGR),
actuator diagnosis the regulating schematic
throttle is driven in intervals.
If switching can be felt and heard,
then the power supply will be okay.
A defective regulating throttle must
be replaced by a new one.
Check the fuse. Replace a blown fuse
by a new fuse of the same amp. rating.
Never insert a fuse with a higher fuse
rating compared to the rating (10 amps)
specified by the manufacturer.
We do not recommend cleaning of the
regulating throttle:
In the case of a defective regulating New regulating throttle Regulating throttle suffering from oil
throttle suffering from the damage contamination
described overleaf, cleaning will not
result in an improvement.
A functional regulating throttle could
MS Motor Service International GmbH 0208 EN
be damaged by cleaning it.
www.ms-motor-service.com
MS Motor Service International GmbH 74196 Neuenstadt Germany
Kolbenschmidt Pierburg Group
