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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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Pedal Tuning

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Hans Walter Roos 16 April, 2026
Noticeable extra power especially when overtaking! Easy installation.
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The purchase process was simple and straightforward. Same with the installation. The product is better than expected – consistent power with improved fuel efficiency. Top quality.
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The chips were incredibly easy to install and the result is simply outstanding. More power, smoother running and lower consumption. Just bought my 3rd one for my new car.
Summary of your optimization
Vehicle / Product
Output
Torque
Price
Vauxhall Vectra (C) 3.0 CdTi
184 HP (135 kW)
400 Nm
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Vauxhall Vectra (C) 3.0 CdTi, optimized
—
—
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Installment payment available
Free shipping
30-day return policy
Easy installation

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