Fuel Suction Control Valve – BMW 1 3 5 7 X3 X5 – 13517787186

Get your BMW 1 3 5 7 X3 X5 back to correct fuel pressure regulation and reliable diesel starting with this replacement fuel suction control valve, also referenced in service manuals as the quantity control valve or fuel inlet metering valve. Built to OEM specification, matching 13517787186, 0928400560, 0928400651, 0928400482 and 0928400494. Also fits equivalent Tata models.

Common signs of failure

A failing SCV on common-rail diesel engines typically causes hard starting (especially when warm), extended cranking before the engine fires, hesitation under load, intermittent loss of power, and fault codes P1093, P0093, P0087 or P008A (low fuel pressure, fuel system performance). The engine may also drop into limp mode under hard acceleration. SCV failure is one of the most common common-rail diesel faults on Denso-equipped engines.

Fitment notes

Direct-fit replacement, mounted on the high-pressure fuel pump. Relieve fuel system pressure before removal. The new SCV typically comes pre-greased — no additional preparation required. After fitting, clear codes and complete a short test drive; the ECU re-learns rail pressure adaptations automatically. Standard 2 pin connector. Position: Engine Compartment.

Frequently asked questions

Will replacing the SCV fix my hard starting?

If the cause is loss of fuel pressure between starts (a classic SCV failure mode), yes. Replacement restores correct regulation and the engine fires within normal crank time.

Is this the same as a fuel pressure regulator?

Functionally similar — both regulate fuel pressure — but the SCV controls fuel volume entering the pump, while a pressure regulator bleeds excess pressure off the rail. Common-rail diesels use SCVs.

Should I replace the high-pressure pump as well?

Not unless the pump itself is damaged. SCVs fail far more often than the pump body and are designed to be replaced as a service item.