Disabling the exhaust gas recirculation (EGR) system.
Exhaust gas valve (EGR)
- We perform the work within one working day and make our own software changes
- We perform input and output checks on all vehicle systems before and after the service
- We provide a two-week test period and a lifetime software warranty
- We are experienced in solving non-standard problems and use professional equipment
Choose a car


Top Cars for Chip Tuning
Alfa Romeo
159
Brera
Giulia
Giulietta
GT
MiTo
Stelvio
Audi
A1
Audi A1 2010 2014 8x 16 Tdi 105 Hp
Audi A1 2015 2017 10 Tfsi 82 Hp
Audi A1 8x 2010 2014 14 Tfsi 185 Hp
A2
A3
Audi A3 8l 1996 2003 18t 20v 180 Hp
Audi A3 8p 2003 2008 19 Tdi 105 Hp
Audi A3 8p 2008 2012 14 Tfsi 125 Hp
Audi A3 8v Mk1 2012 2016 14 Tgi G Tron 110 Hp
A4
Audi A4 B5 1995 2001 19 Tdi 110 Hp
Audi A4 B5 1995 2001 19 Tdi 90 Hp
Audi A4 B6 2001 2004 19 Tdi 130 Hp
Audi A4 B6 2001 2004 20 Fsi 150 Hp
Audi A4 B7 2004 2008 18 T 163 Hp
Audi A4 B7 2004 2008 20 Tdi 140 Hp
Audi A4 B8 2008 2011 20 Tdi Cr 136 Hp
Audi A4 B8 2008 2011 20 Tfsi 211 Hp
Audi A4 B8 2012 2015 20 Tdi Cr 120 Hp
A6
Audi A6 C5 1997 2004 25 Tdi 180 Hp
Audi A6 C6 2004 2008 30 Tdi 225 Hp
Audi A6 C6 2008 2010 20 Tdi 163 Hp
Audi A6 C7 2011 2018 20 Tdi 190 Hp
Audi A6 C7 2011 2018 30 Tfsi 300 Hp
Audi A6 C8 2018 45tfsi 20t 245 Hp
Audi A6 C6 2004 2008 42 Fsi 335 Hp
Audi A6 C7 2011 2018 20 Tfsi Hybrid 245 Hp
A7
Audi A7 4g 2010 2014 30 Tdi Quattro 204 Hp
Audi A7 4g 2014 2017 30 Tdi Fwd 190 Hp
A8
Audi A8 D2 1999 2003 25 Tdi 180 Hp
Audi A8 D3 2003 2010 42 Fsi 350 Hp
Q5
Audi Q5 8r 2008 2011 20 Tdi Cr 163 Hp
Audi Q5 8r 2008 2011 20 Tdi Cr 170 Hp
Audi Q5 8r 2012 2016 30 Tdi 258 Hp
Q7
Audi Q7 2006 2010 42 Fsi 350 Hp
Audi Q7 2010 2014 60 V12 Tdi 500 Hp
Q8
TT
BMW
M4
X1
Bmw X1 E84 2009 2012 18d 143 Hp
Bmw X1 E84 2012 2015 18i 150 Hp
Bmw X1 F48 2015 Sdrive18d 150 Hp
Bmw X1 E84 2009 2012 18d 143 Hp
X3
Bmw X3 E83 2004 2010 20d 163 Hp
Bmw X3 E83 2004 2010 30d 218 Hp
Bmw X3 F25 2011 2017 18d 143 Hp
Bmw X3 G0108 2017 Xdrive18d 150 Hp
X5
Chevrolet
Cruze
Orlando
Chrysler
Citroen
Berlingo
C-Crosser
C3
C4
C5
C5 Aircross
Jumpy
Nemo
Dacia
Dokker
Lodgy
DAF
Dodge
Fiat
Doblo
Ford
Fiesta
Ford Fiesta Mk5 2001 2008 14 Tdci 68 Hp
Ford Fiesta Mk6 2008 2012 14 Tdci 70 Hp
Ford Fiesta Mk7 2013 2017 15 Tdci 75 Hp
Ford Fiesta Mk8 2017 10t Ecoboost 100 Hp
Focus
Ford Focus 1998 2005 16i 16v 100 Hp
Ford Focus 2004 2010 16 Tdci 109 Hp
Ford Focus 2011 2014 10 Ecoboost 125 Hp
Ford Focus 2011 2014 20 St Ecoboost 250 Hp
Ford Focus 2014 2017 15 Tdci 105 Hp
Ford Focus 2018 10 Ecoboost 125 Hp
Fusion
Kuga
Honda
Civic
Hyundai
Infiniti
FX
Q30
Q50
QX70
Iveco
Jaguar
Jeep
Cherokee
Grand Cherokee
Jeep Grand Cherokee 2005 2011 30 Crd 218 Hp
Jeep Grand Cherokee 2005 2011 57 Hemi V8 357 Hp
Renegade
Kia
Lexus
Mazda
CX-3
CX-5
CX-7
CX-9
Mercedes-Benz
GLK
ML
SL
SLK
Mitsubishi
Nissan
Pathfinder
Opel
Astra
Corsa
Insignia
Signum
Vectra
Vivaro
Peugeot
208
Peugeot 208 2012 2015 16 T Hp 155 Hp
Peugeot 208 2015 16 Bluehdi 8v 100 Hp
Peugeot 208 2012 2015 Gti 16 T Hp 200 Hp
3008
406
407
508
Peugeot 508 Ph1 2010 2014 20 Hdi 163 Hp
Peugeot 508 Ph2 2014 2018 20 Bluehdi 150 Hp
Partner
RCZ
Renault
Seat
Ibiza
Leon
Toledo
Skoda
Subaru
Toyota
Volvo
S40
S60
V40
V50
VW
Amarok
Golf
Volkswagen Golf Golf 5 2003 2008 14i 16v 75 Hp
Volkswagen Golf Golf 5 2003 2008 20 Tfsi Gti 200 Hp
Volkswagen Golf Golf 6 2009 2012 20 Tdi Cr Gtd 170 Hp
Volkswagen Golf Golf 7 2012 2016 12 Tsi 105 Hp
Volkswagen Golf Golf 7 2012 2016 14 Tsi 125 Hp
Volkswagen Golf Golf 7 2012 2016 14 Tsi Gte 204 Hp
Passat
Volkswagen Passat B5 1996 2005 19 Tdi 90 Hp
Volkswagen Passat B6 2005 2010 20 Tdi 140 Hp
Volkswagen Passat B7 2010 2014 20 Tdi Cr 136 Hp
Volkswagen Passat B8 2014 2019 16 Tdi Cr 120 Hp
Phaeton
Polo
T-Roc
Tiguan
Volkswagen Tiguan 2007 2011 20 Tdi Cr 110 Hp
Volkswagen Tiguan 2011 2015 20 Tdi Cr 140 Hp
Volkswagen Tiguan 2016 14 Tsi 150 Hp
Volkswagen Tiguan Nz 2007 2011 20 Tfsi 200 Hp
Touareg
Volkswagen Touareg 2002 2007 30 Tdi 211 Hp
Volkswagen Touareg 2015 2018 30 Tdi 204 Hp
Volkswagen Touareg 2018 30 Tdi 286 Hp
Touran
Where to find us

EGR Removal
Car designers, in their quest for more environmentally friendly vehicles, install various devices that reduce the amount of harmful emissions. However, many of these devices eventually stop working correctly and do more harm to the car than they do to protect the environment. One such unit is the exhaust gas recirculation valve. Solving the problems arising from it brings EGR removal in Warsaw - a popular service provided by STS company.
What is an EGR valve
The Exhaust Gas Recirculation (EGR) system connects the intake manifold after the throttle valve to the exhaust tract with a special channel. At idle and at low engine speeds, it allows returning part of the exhaust gases that have left the engine back into the combustion chamber. This is done to burn the remaining fuel that flies out with the exhaust at inefficient engine modes.
A special valve regulates the return of gases and their supply to the cylinders. At low revs, its flap is open; as the engine speed increases, it closes. EGR valves are mainly installed on diesel vehicles and come in three main types:
- Pneumatic. The valve opens due to a change in vacuum in the intake manifold. It was installed on older car models.
- Pneumoelectric. Structurally similar to the previous one, but regulated by the engine control unit.
- Electric. Equipped with its own servo drive. The time and force of opening are regulated by the electronic control unit.
The design of the unit differs noticeably depending on the model and year of manufacture of the car. The EGR valve can be made either as a rather large unit, similar to a throttle valve, or be a small part, about the size of an idle speed regulator.
Why car owners remove EGR
Like most units designed to increase the environmental class of a car (for example, a soot filter or swirl flaps), the exhaust gas recirculation valve is designed to work in ideal situations. Difficult operating conditions, poor fuel quality, and other non-standard factors lead to its rapid failure.
But even a properly functioning EGR system negatively affects the engine's operation in some aspects:
- Warm exhaust gases, returning to the engine, dilute the air cooled by the intercooler in the intake manifold, and effectively waste the work of this unit;
- Exhaust gases contain not only unburned fuel but also oil residues, soot, and other substances that significantly worsen the purity of the air entering the cylinders, and hence the quality of the mixture;
In addition, the contaminants contained in the exhaust gases settle on the walls of the intake system, reducing the diameter of the manifold, and therefore the volume of air that can enter the combustion chamber. In fact, these deposits cause the valve flap to fail. It sticks in one position, stops responding to control commands.
If the valve gets stuck in the open position, gases continue to enter the cylinders even at high revs. This not only negatively affects dynamics and fuel consumption but also leads to rapid clogging of the soot filter. Blocking in the closed position is somewhat better, but then an error lights up because the control unit sees that the gas recirculation system is not working in normal mode. As a result, the car may go into emergency mode.
Signs of malfunction of the gas recirculation system
You can understand that the EGR valve has failed by the following symptoms:
- Jerks are felt during acceleration;
- The car jerks at idle;
- A decrease in engine power is felt;
- Fuel consumption increases;
- Exhaust gases become more toxic, with an unpleasant smell;
- Black smoke appears;
- The Check engine light comes on on the dashboard.
All this indicates that it's time to solve the problem with the valve. And the best solution is to remove it.
EGR removal, plugging, deactivation - what it means and how we do it
First, before carrying out the procedure, we conduct a full computer diagnostics of the car to confirm the state of the EGR system, as well as other engine units.
Blocking the recirculation valve consists of two parts: physical disconnection and reprogramming. Mechanically, it is often enough to disconnect the connector, fixing the unit in the closed position. In some cases, the EGR valve is removed and a plug is installed in its place.
In order to prevent errors and incorrect operation of the electronic engine control unit and related units, along with the mechanical removal of the gas recirculation system, it is necessary to disable it at the software level. Parameters are changed so that the ECU ignores the constant presence of the valve in the open position and does not go into service mode.
Advantages of EGR removal in Warsaw at STS.Parts
We have qualified specialists with many years of experience in servicing cars of all modifications. We carry out the entire complex of work on disconnecting the gas recirculation system within one working day, including diagnostics of the car before and after the procedure.
After removing the valve, we provide two weeks as a test period during which the client can assess the advantages of the absence of the system. After that, there is a lifetime warranty on the software.
Vehicles we service
We work with all diesel vehicles without exception equipped with exhaust gas recirculation valves - passenger, commercial, heavy-duty, as well as agricultural and special equipment. And although the price for EGR removal in Warsaw depends on the class and specific model of the vehicle, it is much lower than the cost of a new valve. Most importantly, it solves the problem once and for all.
