GFB DV+ turbocharger diverter valve for Mercedes/Ford/Volvo

GFB DV+ for selected Mercedes, Ford and Volvo applications

GFB DV+ is a direct replacement for the weak factory diverter valve, used in many European vehicles. Not suitable for diesel models.

The simple DV+ solution: keep what works and replace what does not

• Uses the original solenoid coil for seamless integration.
• Replaces the valve’s plastic parts with metal components, improving reliability and strength under increased boost pressure.
• Direct installation with all the benefits of the GFB TMS system.
• Unique pilot-controlled mechanism for a fast response under high boost pressure.

The original solenoid coil is effective because the engine control unit opens it faster than a pneumatic valve. The weak point is the valve mechanism. DV+ solves this problem with an anodised machined aluminium housing and a brass piston manufactured to precise tolerances.

The result is improved throttle response, very fast valve operation and reliable boost pressure retention even at increased pressure. DV+ does not require long vacuum hoses, additional connections to the intake manifold vacuum, a second solenoid valve or a resistor for connection to the original electrical wiring.

Compared with conventional pneumatic replacement systems, the DV+ solution responds faster, is easier to install and does not cause compressor surge or the characteristic turbo flutter sound. It also does not require spring replacement or frequent servicing.

More performance and faster boost pressure recovery

Many newer European cars use solenoid-operated diverter valves controlled by the engine control unit. This design enables a very fast response and opens the valve only when necessary.

The following problems can occur with factory valves:

• The diaphragms are weak and can rupture, especially under increased boost pressure. When this happens, the valve can no longer hold pressure.
• The plastic edge around the diaphragm is very thin, so parts of it can break off and potentially pass through the turbocharger.

In the original valve, the solenoid is directly connected to the valve mechanism. This design is not ideal because the solenoid and return spring are not powerful enough to open and close the valve reliably under high boost pressure.

DV+ retains the original solenoid coil and therefore the benefits of the factory system, while the metal valve components provide greater strength and reliability. The special pilot-controlled mechanism means that the solenoid controls the airflow through a small channel, which opens and closes the piston. The valve therefore opens and closes reliably regardless of boost pressure, without exceeding the solenoid’s capabilities.

The valve also opens progressively according to boost pressure and only as much as necessary. The factory valve simply opens or closes and cannot open partially at lower pressure. Progressive opening improves throttle response.

Suitable for: Ford Fiesta VII (CB1), Ford Mustang VI (S550), Infiniti Q30 I (H15), Infiniti Q50 I (V37), Infiniti Q60 II (CV37), Mercedes-Benz A-Class III (W176) / IV (W177), Mercedes-Benz B-Class II (W246), Mercedes-Benz C-Class III (W204) / IV (W205), Mercedes-Benz Cla II (C118), Mercedes-Benz Cls II (C218), Mercedes-Benz E-Class III (W212) / IV (W213), Mercedes-Benz Gla Class I (X156) and 8 more (see the table below).