MS Motor Service International GmbH

MS Motor Service International 

Service with tradition 

Carburettor production site, Berlin Solex Carburettors Solex Carburettor 

Service 

Present-day production of intake 

manifolds

PIERBURG Service 

Technical information 

Fuel supply ................................Pages 4–5 

Electric and mechanical fuel pumps 

Fuel supply units 

Combined fuel/vacuum pumps 

Solenoid valves for the activated 

carbon fi lter system 

Non-return valves 

Fuel hoses 

Pressure regulating valves 

Air supply ..................................Pages 6–7 

Throttle valves/regulating throttles 

Throttle potentiometer 

Repair kits for (variable) intake manifold 

Actuators 

Support 

Air mass sensors (Otto/Diesel) 

KS air fi lters 

Exhaust gas recirculation 

systems .....................................Pages 8–9 

EGR valves 

Air mass sensors 

Electric valves for actuating 

pneumatic EGR valves 

Regulating throttles 

PIERBURG training courses 

Secondary-air systems ...... Pages 10–11 

Secondary-air pumps 

Secondary-air valves 

Electric valves for actuating pneumatic 

secondary-air valves 

Electric valves ...................... Pages 12–13 

On-off valves 

Valves for turbochargers 

Modulating valves 

Valves for the activated carbon 

fi lter system 

Fuel shut-off valves 

Vacuum pump ...................... Pages 14–15 

Mechanical vacuum pumps 

Combined vacuum/fuel pumps 

Electric vacuum pumps 

Additions to the 

product range ...................... Pages 16–17 

Exhaust gas fl aps 

Water circulating pumps 

Lambda probes 

PIERBURG Products in Focus 2 | 3 

Motor Service online 

Tools and testing instruments


Fuel supply 

Product range 

 

 

 

 

 

 

 

Electric fuel pumps (in-line and in-tank) 

Mechanical fuel pumps 

Fuel supply units (swirl pots) 

Combined fuel/vacuum pumps 

(“tandem pumps”) 

Solenoid valves for activated carbon 

fi lter systems (ACF) 

Fuel supply in focus 

Various components for the 

fuel supply are directly or indirectly 

monitored by the OBD system 

PIERBURG is an OE supplier 

As one of the leading providers of 

fuel pumps, we supply an extensive 

product range which is tailored to the 

needs of the market. It includes about 

280 fuel pumps and fuel delivery 

modules which are used in almost 

every make of vehicle 

 

 

 

 

 

 

 

 

Tank fi lling level sensor 

Non-return valves 

Fuel hoses 

Pressure regulating valves 

Testing and measuring equipment « 

Compact product range of fi rst-class 

fuel pumps providing superior market 

coverage from Alfa Romeo to Volvo 

In addition, we offer numerous fuel 

pump for universal applications or 

retrofi tting 

PIERBURG fuel pumps stand out due 

to their highly developed technology, 

optimum hot-fuel supply properties 

and low noise level 

From system-pressure regulators, nonreturn 

valves and regeneration valves 

up canister purge shut-off valves 

– PIERBURG provides a wide spectrum 

of components that are indispensable 

in the fuel system 

Other products for the fuel system, 

such as electric valves, fuel hoses, 

etc. «

Electric fuel pumps and fuel 

delivery modules 

 

 

 

 

 

 

Extensive product range with 240 electric 

fuel pumps and fuel supply units 

with excellent market coverage 

Convincing product portfolio for 

almost every application as well as for 

universal use 

MS Motor Service is one of the leading 

providers of electric fuel pumps 

For retrofi tting in place of mechanical 

fuel pumps 

One PIERBURG pump can replace several 

pumps of rival suppliers 

100% compatibility for competitors in 

the OE and aftersales markets 

Fuel fi lters 

More than 700 fuel fi lters in the renowned 

KS and PIERBURG brands 

High vehicle coverage. (For BMW, 

Volkswagen, Alfa Romeo, Audi and 

many others) 

Mechanical fuel pumps 

 

 

 

 

90 types included in our range 

Applications for instance in VW/Audi, 

BMW, Opel, Ford, Mercedes Benz, Saab, 

Volvo, Skoda, Nissan, Mazda, Renault, 

Peugeot, Iveco, Lada and in many other 

types of car … 

Thanks to its longstanding tradition 

in the development and production of 

mechanical fuel pumps PIERBURG has 

an excellent name in the market 

Re-introduction of various types of 

mechanical fuel pumps for use in older 

vehicles 

Tools & Accessories Technical Information bulletins 

Fuel pump tester for testing electric 

fuel pumps outside the vehicle 

Fuel pressure tester: for testing 

electric fuel pumps in their installed 

condition 

Special tool for dismantling and installing 

in-tank fuel pumps on various 

Audi vehicles 

Fitting tool for fuel pumps 

(BMW 5 series) 

Additions to product groups 

Tank fi lling level sensor 

Fuel regulators with high vehicle 

coverage 

If the engine is diffi cult to start or 

becomes overrich when starting, there 

is a remedy 

Fuel check valves 

 

 

 

 

More than 40 Product and Service 

Information bulletins dealing with 

this subject 

Numerous mounting instructions 

Brochure “Fuel systems – Components 

and Solutions for Universal 

Applications” 

Brochure “Electric Fuel Pumps 

– Models, Damage, Reasons” 


Prevent fuel lines from running dry 

Can be universally applied and have 

good retrofi tting characteristics 

Available with diameters of 4, 6 and 8 mm 

Opening pressures from 15 to 

1400 mbar 

Solenoid valves for the activated 

carbon fi lter system (ACF), such as ACF 

regeneration valves and canister purge 

shut-off valves


Air supply 

Product range 

 

 

 

 

Throttle valves/regulating throttles 

(mechanical, pneumatic, electric) 

Throttle potentiometers 

Repair kits for (controlled) intake 

manifold 

Air supply in focus 

Components for air supply are 

directly or indirectly monitored 

by the OBD system. Whenever there is 

a failure in these systems or components, 

a repair will be essential 

PIERBURG manufactures weight-reduced 

intake manifolds, intake manifold 

modules, intake manifolds with 

EGR of aluminium or magnesium 

 

 

 

 

 

 

Actuators (electric drive modules, idle 

controllers, step motors) 

Air mass sensors (Otto/Diesel) 

KS brand air fi lters « 

PIERBURG intake manifolds are installed 

in premium vehicles 

Well-engineered technical solutions 

ensure optimum performance, driving 

comfort and the right torque together 

with low fuel consumption 

More than 30 million throttle bodies 

have been installed in European 

vehicles so far – evidence of the 

expertise of PIERBURG in the air 

management sector 

 

 

 

MS Motor Service International provides 

repair kits for intake manifolds 

PIERBURG is one of the top providers 

of throttle bodies, regulating throttles 

and intake modules 

PIERBURG throttle bodies are used in 

more then 25 million vehicles «

Throttle valves 

(for Otto engines) 

 

 

 

 

 

PIERBURG includes various types of 

throttle bodies for Otto engines in its 

programme 

The breath of our products ranges from 

mechanical throttle bodies to fully electronic 

“drive-by-wire” throttles 

Convincing product portfolio for many 

vehicle types 

PIERBURG is one of the top market 

leaders for European applications 

PIERBURG throttle bodies cannot be 

replaced by other providers 

Additions to product groups 

Air fi lters for passenger cars and utility 

vehicles in the renowned KS brand 

Electric drive modules 

for actuating tumble fl aps in modern 

diesel engine concepts 

Regulating throttles 

(for diesel engines) 

 

 

 

 

 

 

 

To increase the manifold vacuum and 

for an exact metering of exhaust gas 

recirculation rates 

A rounded-off product range of regulating 

throttles for diesel vehicles 

PIERBURG is one of the major providers 

for European applications 

PIERBURG regulating throttles cannot be 


Increasing demand as result of the rising 

number of car registrations with diesel 

engines 

Essential component for regenerating 

diesel particulate fi lters 

Other designations: diesel throttle, 

prethrottle, throttle governor 

Servo motors 

for adjusting variable intake manifolds 

Step motors 

for idle control (idling actuators) 


Special bits for detaching air 

mass sensors 

Air mass sensor test cables 

for testing PIERBURG air 

mass sensor (up to year of 

construction 1998) 

Hand pressure pumps/ 

vacuum pumps for testing 

pneumatic actuators 


 

 

 

 

 


“Sought-after product” in practiceproven 

quality 


vehicle types 

OE applications for Mercedes, Opel, VW, 

Peugeot, etc. 

PIERBURG air mass sensors can replace 

air mass sensors made by other manufacturers 

Various designs: With fl ow pipe or as a 

separate plug-in sensor 

Electropneumatic valves 

for controlling the adjustment of pneumatically 

operated intake manifolds 

Throttle potentiometers 

as a spare part 

More than 20 Product Information and Service Information 

bulletins dealing with this subject


Exhaust gas recirculation systems 

Product range 

 

 

 

 

EGR valves (pneumatic/electric) for 

petrol and diesel vehicles 

Air mass sensors as essential sensors 

for controlling exhaust gas recirculation 

on diesel engines 

Electric valves for actuating pneumatic 

EGR valves 

Regulating throttles for increasing the 

manifold vacuum and ensuring precise 

metering of the exhaust gas recirculation 

rate on diesel vehicles « 

Exhaust gas recirculation systems in focus 

These components are at 

present monitored to a large 

extent by the OBD system, i.e. every 

malfunction results in a power loss and 

consequently in an inevitable repair 

Thanks to the EGR system, up to 50 % 

of the pollutants in exhaust gases are 

made harmless prior to reaching the 

catalytic converter 

 

 

 

In the emission control sector, 

PIERBURG is the European 

market leader and is signifi cantly 

represented as an OEM supplier in 

numerous modern vehicles 

PIERBURG products cannot be 

replaced by other products – the only 

competitor is the original equipment 

Products for emission control provide a 

huge potential for free trade 

Practice-proven millions of times 

all over the world, the PIERBURG 

emission control components in 

modern vehicles provide for clean air 

and a clean environment (installed for 

instance in VW/Audi, BMW, Opel, Ford, 

Mercedes Benz, Saab, Volvo, Skoda, 

Mazda, Renault, Peugeot, Lada and in 

many other types) «

EGR valves 

95 types of electric and pneumatic 

EGR valves are included in our product 

portfolio 

Defective EGR valves become evident 

through customer complaints such as 

black smoke, power loss, poor idling or 

insuffi cient acceleration 


 

 

 

“Sought-after product” in practiceproven 

quality 


vehicle makes 

OE applications for Mercedes, Opel, VW, 

Peugeot 

Electropneumatic valves 

For the precise controlling of pneumatic 

EGR valves 

For controlling the exhaust gas fl aps/ 

regulating throttles 


Hand pressure pump/vacuum pump for testing pneumatic 

EGR valves 


PIERBURG EGR valves cannot be 


Every modern diesel engine is equipped 

with an EGR valve 

PIERBURG air mass sensor can replace 

air mass sensors made by other manufacturers 

Thanks to PIERBURG plug-in sensors, 

replacement is extremely simple 

12 Product Information and Service Information bulletins 

dealing with this subject 

Brochure “Emission Control & OBD with PIERBURG Products” 

Instruction chart “OBD & Exhaust Gas Recirculation System”


Secondary-air systems 

Product range 

 

 

 

 



Electric valves for controlling 

pneumatic secondary-air valves « 

Secondary-air systems in focus 

The components of secondary-air 

systems are at 

present also being monitored by the 

OBD system to a large extent, i.e. every 

malfunction results in a power loss and 

consequently in an inevitable repair 

By using secondary-air systems, the 

pollutants in exhaust gases are made 

harmless prior to even reaching the 

catalytic converter 

In the emission control sector, 

PIERBURG is the European market 

leader and is signifi cantly represented 

as an OEM supplier in numerous 

modern vehicles 

PIERBURG products cannot be 

replaced by other products – the only 

competitor is the OEM 

 

Products for emission control provide a 

huge potential for free trade «


30 models included in our portfolio 

PIERBURG secondary-air pumps cannot 

be replaced by other manufacturers 


About 20 valve models are included in 

our portfolio 

PIERBURG secondary-air valves cannot 

be replaced by other manufacturers 

Electric valves 

For precise controlling of pneumatic 



Hand pressure pump/vacuum pump for testing pneumatic 



Defective secondary-air pumps become 

evident by customer complaints, such as 

whistling noises or unsteady idling during 

the cold start phase of the engine 

Whenever it is replaced, the secondaryair 

valve must also be checked 



Brochure “Emission Control & OBD with PIERBURG Products” 

Instruction chart “OBD & Secondary-air System”


Electric valves 

Product range 

On-off valves 

(EUV electric switchover valves ) 

Valves for turbochargers 

(recirculating air valves, modulation 

valves, EPW electropneumatic pressure 

transducers) 

 

 

 

 

Electric valves are directly or 

indirectly monitored by the 

OBD system. Whenever these valves 

break down a repair is essential 

OE production: more than 45,000 

parts/day 

More than 250 valves in series 

production 

Electropneumatic valves are small, 

inconspicuous and hardly= detectable 

in the engine compartment 

But they are powerful helpers in the 

vehicle 

 

 

 

 

 

Electric valves in focus 

Electric pressure transducers (EDW ) 

Valves for the activated carbon fi lter 

system (ACF) 

Boost pressure control valves (LDRV) 

Bypass cut-off valves (UAV) 

Fuel shut-off valves « 

The required vacuum as auxiliary energy 

is available in almost every vehicle 

(manifold vacuum or vacuum pump) 

Electric valves made by PIERBURG 

are used for switching and controlling 

intake manifolds, secondary-air 

systems, exhaust gas fl aps, air conditioning 

units as well as for implementing 

convenience and safety 

functions « 

Vehicle and valve manufacturers sometimes 

use quite different designations for 

their components. Here is a selection of 

alternative designations for the respective 

PIERBURG names: 

Electropneumatic transformer 

- Electropneumatic pressure transformer 

- Pressure transformer (VW, BMW) 

Electric switchover valve (EUV) 

- Reversing valve 

- Solenoid valve boost pressure 

limitation N75 (VW) 

- Magnetic switchover valve (VW) 

- Electric valve (BMW) 

Electric switchover valve (EUV) 

- Pressure transformer 

- Valve (VW) 

- Electric valve (BMW)

Electropneumatic pressure 

transducers (EPW) 

For controlling pneumatic EGR valves, 

VTG turbochargers, the bypass changeover 

switch on EGR coolers 

A defective electropneumatic pressure 

transducer becomes evident through 

black smoke, lack of power, vehicle 

jerking or by going to the limp home 

function 

Activated carbon fi lter valves (AKF) 

Canister purge shut-off valves: For sealing 

the fresh air connection on the ACF 

during tank leakage diagnostics (ODB II) 

ACF regeneration valve: For rinsing the 

ACF activated carbon fi lter 

Electric pressure 

transducers (EDW) 

This is an intermediate step in the development 

from electric switchover valves to electropneumatic 

pressure transducers EPW. 

They consist of an electric switchover 

valve fi tted with a pressure limiter 

The pressure limiter maintains a vacuum 

that is nearly constant 

Used to control EGR valves on Otto 

engines 

Fuel shut-off valves 

For hooking up or disconnecting in fuel 

lines (as an immobiliser) and to prevent 

the fuel from escaping whenever the 

engine is switched off 


Pressure/vacuum hand pump for testing pneumatic 

actuators 


Electric switchover valves 

(EUV) 

Used to control the boost pressure 

valves (wastegate) on many diesel 

engines, secondary-air valves, throttle 

valves for exhaust gas recirculation 

(EGR) on some SDI engines, engine 

water cooler frames on BMW diesel 

engines, hydraulic engine bearings 

on diesel engines, exhaust gas fl aps 

on exhaust post-silencers on petrol 

engines, controlled intake manifolds 

Electric recirculating air valves 

Are used on the turbochargers of 

modern charged diesel engines and 

considerably minimise the “turbocharger 

lag” effect 



Flyer “Electropneumatic valves“


Vacuum pumps 

Product range 

Mechanical vacuum pumps of various 

designs 

Combined vacuum/fuel pumps 

(“tandem pumps”) 

Vacuum pumps in focus 

 

 

 

PIERBURG is the leading European 

manufacturer of vacuum pumps! 

All diesel engines need a vacuum pump 

installed and in almost every European 

market the share of diesel vehicles is 

increasing signifi cantly 

Vacuum pumps generate the vacuum 

required for brake boosters on vehicles 

with diesel engines and in petrol engines 

with low manifold vacuum 

Electric vacuum pump for universal 

applications, outside the engine « 

 

 

 

Vacuum pumps are also required for 

the functions of central locking systems, 

air conditioning units, emission 

control systems and other control 

elements 

The vacuum is needed, for instance, 

for brake assistance, for operating 

pneumatic actuators and valves and 

for a number of comfort features 

Vacuum pumps are safety-relevant 

components, that means that their 

proper functioning is of vital interest 

 

If there is a vacuum pump failure 

– there will be a lack of brake assistance, 

as a result, pedal force of up 

to 1,000 N may become necessary 

when braking in an emergency 

– there will be a breakdown of emission-reducing 

components in the 

exhaust gas recirculation and secondary-air 

systems (petrol engine) 

– turbo charge control and diesel regulating 

throttle will not function 

– comfort features will break down 

partly or altogether «

Technical Information bulletins 

Mechanical vacuum pumps 

 

 

 

Vacuum pumps are safety-relevant 

components 

Reliable vacuum generation for servo 

assistance 

Additional applications for central 

locking systems, air conditioning units, 

automatic transmission units, emission 

control systems, etc. 

Electric vacuum pumps 



Combined vacuum / fuel pumps 

Fulfi l the functions of mechanical 

vacuum pumps 

Are used supplementary to the fuel feed 

system 

 

 

 

With maintenance-free 12V electric motor 

Generate a vacuum of max. 850 mbar 

For numerous universal application 

(e.g. electric vehicles, boats, vehicle 

and machine manufacturing, etc.) 

PIERBURG Products in Focus 14 | 15


Additions to our product range 

Exhaust gas fl aps 

 

 

 

 

Important switching elements for future 

emission control methods (DeNOx 

catalytic converters, HC absorbers) 

Optimisation of acoustics for exhaust 

gas tract 

Performance increase thanks to 

resonance effects 

Noise reduction 

Water circulating pumps 

 

 

 

 

Water circulating pump improve the 

thermal capacity of engines and fuel 

systems 

PIERBURG electronic water circulating 

pumps are extremely quiet and are used 

in water-controlled heaters, auxiliary 

heating systems or independent car heaters. 

As a result, they contribute to a good 

atmosphere in the car 

Circulating pumps in independent 

car heating systems ensures that the 

passenger compartment heats up faster 

The delivery rate is independent of the 

engine speed of the vehicle 

Lambda probes 

 

 

 

 

 

New in our product range 

To round off our product portfolio 

Motor Service uses the new lambda 

probe to supplement the range of 

components for the air supply/emission 

control sector 

The programme currently includes a 

number of universal zirconium types as 

well as a few special probes for the latest 

Opel models 

These universal types allow for a very 

high vehicle coverage

Tools and Testing Instruments 

1 Pressure/vacuum hand pumps for 

checking pneumatic actuators 

2 Fitting tools for installing/dismantling 

electric fuel pumps 

3 Fuel pump testers for trade and repair 

shops: Quick check on electric fuel 

pumps outside the vehicle 

3 

4 Fuel pressure testers: For checking 

the tightness and pressure (up to 10 

bar) of fuel pumps, system-pressure 

regulators and valves accurately and 

right on the vehicle 

5 Special tools for dismantling and 

installing in-tank fuel pumps on many 

Audi cars (80/100/200/Avant/Quattro/A6) 

after year of construction 

08/1984 

1 

6 Special bits for detaching air mass 

sensors 

7 Air mass sensor test cables for checks 

on PIERBURG air mass sensors 

(models up to 1998) 

2 7 5 


4 

6


Technical information 

Brochures & Catalogues … Instruction charts … 

Service – Tips & Information 

Emission Control & OBD 

with PIERBURG Products 

* ) Further languages on request. 

article No. 50 003 960-01 German * ) 

article No. 50 003 960-02 English * ) 


Fuel systems 

Components and Solutions for Universal 

Applications 

article No. 8.40002.56.0 German * ) 

article No. 8.40002.57.0 English * ) 


Electric Fuel Pumps 

Models, Damage, Reasons 



Catalogue 

PIERBURG Catalogue 

article No. 50 003 566 de-en-fr-es-it-ru 

Catalogue 

Tools and Testing Instruments 



Posters 

OBD & PIERBURG 

On-Board Diagnosis and PIERBURG Products 

840 x 549 mm (DIN A1), washable, tear-resistant 



Posters 

OBD & Secondary Air System 

Finding and remedying faults 

420 x 594 mm (DIN A2), 

washable, tear-resistant 



Posters 

OBD & Exhaust Gas Return 

System 


420 x 594 mm (DIN A2), 




Posters 

OBD & Air Supply 


420 x 594 mm (DIN A2), 




Posters 

OBD & Fuel Supply 


420 x 594 mm (DIN A2), 



article No. 50 003 979-02 English * )

Know-how Transfer 

Your direct access to our service range … 

www.ms-motor-service.com 

Our training programme … 

OnlineShop … 

Electronic catalogues … 

MS Motor Service Product Disc 

Use our comprehensive catalogue data and 

you will always fi nd the right part for the 

right vehicle. 

Artikel-Nr. 50 003 850 

PIERBURG Service Partner Concept … 

Access to the latest information and 

fi rst-hand know-how. 



About 4,500 mechanics and technicians benefi t from our training courses and seminars 

which are conducted on the spot all over the world or at our training centre in Dormagen 

(Germany). 

… Expertise direct from the manufacturer! 

www.ms-motor-service.com «Technical information/Training programmes» 

Even faster access to the latest product data, to the complete product range. 

… always up-to date! 

www.ms-motor-service.com «Information Centre/Product Search/Online Catalogue» 

TecDoc 

The electronic catalogue of automotive parts 

manufacturers. 

In use everywhere and always 

up-to-date... 

www.tecdoc.net

MS Motor Service International GmbH is the sales organisation for the global 

activities of Kolbenschmidt Pierburg AG. 

Under the premium brands KOLBENSCHMIDT, PIERBURG and TRW Engine 

Components we supply a comprehensive range of requirement-oriented 

products in and on the engine. 

Repair shops and engine reconditioners have engine components for more than 

2000 different engines at their disposal. All products meet high requirements on 

quality, economic effi ciency and environmental protection. 

Kolbenschmidt Pierburg AG. 

As a long-standing partner of the automotive manufacturers, the companies in 

the Kolbenschmidt Pierburg Group develop innovative components and system 

solutions with renowned competence in the fi elds of air supply and emission 

control, for oil, water and vacuum pumps, for pistons, engine blocks and engine 

bearings. 

The products of Kolbenschmidt Pierburg Group comply with the high demands 

and quality standards of the automotive industry. 

Low emissions, reduced fuel consumption, reliability, quality and safety – they 

are the forces that drive innovation at Kolbenschmidt Pierburg. 

50 003 864-02 08/08 

Motor Service Partner 

MS Motor Service 

International GmbH 

Wilhelm-Maybach-Straße 14-18 

74196 Neuenstadt, Germany 

Phone +49 (0) 7139 - 9376 3333 

Fax +49 (0) 7139 - 9376 2864 

Hamburger Straße 15 

41540 Dormagen, Germany 

Phone +49 (0) 2133 - 267 100 

Fax +49 (0) 2133 - 267 111 

info@ms-motor-service.com 


Kolbenschmidt Pierburg Group

MS Motor Service International GmbH

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