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Help differentiating CR/PD

Distinguishing between Common Rail (CR) 
and Unit Injector (PD)

Applicable to certain Volkswagen AG model series with 2.0 TDI engines

Several Audi, Seat, Skoda and VW model series with 2.0 TDI engines use both CR and PD ("Pumpe-Düse" / Unit injector) technology.

RaceChip chip tuning is specially customized to the applicable fuel injection technology with respect to both hardware and software. If your vehicle is specified in the list of applicable models below (all other 2.0 TDI models feature just one type of technology), it is important to determine, before choosing a tuning product, which type of injection technology is installed in your vehicle. For such models, you will therefore find the “CR” or “PD” designation after your engine code.

Performance The following Volkswagen Group model series are applicable: Engine code CR Engine code PD
100kW (136hp) Audi: A3 (8P), A6 (C6)
VW: Golf Plus, Jetta V, Passat B6 		CAGB, CBAA, CFFA AZV, BMA, BNA, BRF
103kW (140hp) Audi: A3 (8P)
Seat: Altea (5P)
Skoda: Octavia (1Z), Superb (3T)
VW: Caddy (2K, 2C), Eos (1F), Golf V,
Golf VI, Jetta V, Passat B6, Touran (1T) 		CBAB, CBDB, CFFB,
CFHC, CJAA, CLCB,
CLJA 		BKD, BKP, BMM, BMP

If your vehicle is in this list and you are not sure if it is a CR or PD version, then simply follow one of the following steps to identify CR or PD technology.

Using the engine code:

For PD models, the engine code consists of 3 characters, while for CR there are 4 characters. You can find your vehicle’s engine code in the specification sheet in your service booklet or on the data sticker in your engine bay.

Using engine images for CR and PD:

Common rail (CR)
Unit injector (PD)
Common rail engine, traverse
CR traverse
Common rail engine, longitudinal
CR longitudinal
Pumpe-Düse (PD, unit injector) engine, traverse
PD traverse
Pumpe-Düse (PD, unit injector) engine, longitudinal
PD longitudinal

Using our customer service:

If the tips above have not clarified the technology type, then please contact our Customer Service department. We will be happy to help. Contact

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You are not just driving your car to get from A to B and long, winding roads make your heart leap? We are glad you found us. We will help you to unlock your engine’s maximum performance and make sure that you will never want to get out of your car again.

Take your ride to the next level!

You are not just driving your car to get from A to B and long, winding roads make your heart leap? We are glad you found us. We will help you to unlock your engine’s maximum performance and make sure that you will never want to get out of your Smart again.

  • Up to 30% more HP and torque RaceChip performance optimisation unlocks up to 30 % more power. ALL ABOUT CHIP TUNING
  • Engine warranty included Thanks to our comprehensive engine warranty you and your ride are protected. MORE INFORMATION
  • Up to 20% more MPG The significant increase in torque enables earlier shifts which leads to less consumption. ALL DETAILS

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Perfectly engineered for your Smart

Make your vehicle stronger with RaceChip

Today's Smart is a product of Daimler Benz and is one of the smallest and most efficient vehicles on the European market. The original concept originated with Nicolas G. Hayek, who had previously founded the Swatch Group. Like the Swatch watches, he saw the potential of exchangeable bodywork for vehicles, which wasn't being offered at the time. Today's most popular models are the Smart fortwo and forfour as well as forjeremy and the roadster. A study of the Smart Four-X, a variation in the compact car segment, has caused speculation about Daimler's next designs.


The Smart forfour 1.5 CDI is very agile and versatile thanks to its size, but many think it could handle a little more power. With the Powerbox from RaceChip, you'll boost the series standard 95 HP up to 125 HP, which represents a sizeable power boost with engine tuning. From a compact runabout to a little powerhouse that knows how to shine not only just in the city, but also on the motorway with new features and a certain oomph.