Solenoid Valve Seal Kit BMW E60 M5 E63 M6 SMG III

This pump motor for the M5 and M6 SMG III is a high-quality replacement part, made in Germany, and specifically designed for the extreme demands of the SMG system. It is ideal for demanding drivers with a sporty driving style that involves frequent gear shifts and high stress on the system. The pump motor comes with the original connector, making it a plug & play replacement for the original part. The set includes not only the pump motor but also all the parts needed for the replacement:

• 4 seals
• 6 screws
• 4 cable ties
• 1 stainless steel clamp
• 1 metal coupling that connects the motor shaft to the gear pump
• 1 pack of lubricating grease

Set of clutch parts contains:

• Two pressure plates
• Friction plate
• Release bearing

We sell only Sachs or LUK components, both are original suppliers for BMW.

The pressure accumulator is responsible to store the pressure of the hydraulic system for later access by the actuators. This piston type accumulator has two cells: one cell storing the hydraulic fluid and one cell containing a Nitrogen gas filling which creates the counterpressure. Both cells are separated by a moving piston. Typical symptoms of a faulty pressure accumulator are frequent and short pump cycles. If there is no more preload pressure left in the accumulator, the pump runs every few seconds, which ultimately leads to a consequential damage of the pump motor. Along with the pump motor, a faulty pressure accumulator is one of the most common causes of pressure build-up issues and is one of the few wear parts in the system that should be regularly checked and replaced if necessary.

The replacement part we offer is a brand-new OE upgrade with improved internal piston seals, resulting in significantly increased durability.

The internal gears of the hydraulic pump tend to wear mechanically and as a result the pump can no longer build up pressure. Our set includes new gears and metal seals that exactly match the original specifications and restore the function of the pump. In the process of overhauling the gear pump, we also recommend replacing the seals, which you can find here.