There is a rattling noise coming from the DISA valve,
SES light is lit and getting a lean mixture fault or rough running at idle. Displaying DTC codes and a loss in low end torque?
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The likely cause of the faults noted and most common cause is the weak plastic components within the DISA valve unit vibrating together and wearing causing the flap to operate at the wrong times.
Fit our improved design billet aluminium flap kit, designed to supersede the original part to never fail again.
Our DISA valve flap and crank lever are replaced with our many times stronger billet aluminium parts, retained by our precision machined screw, which tightly holds the two components together.