ABC tandem hydraulic pump

How you know it is this

• A whine that rises with engine speed
• Heavy steering and an ABC fault at the same time — the giveaway that it is the tandem pump
• Red fluid leaking from the front of the engine

Worth knowing before you buy

• Because it feeds the steering too, a failure takes both systems at once. That combination is the clearest sign it is the pump.
• Debris from a failed pump travels through the whole system. A pump failure usually means flushing and new filters, not just the pump.
• Check the filter and fluid condition before fitting a new pump, or the new one goes the same way.

Rest of the active body control (abc)

• ABC hydraulic struts — front
• ABC hydraulic struts — rear
• ABC pressure accumulators (spheres)
• ABC pulsation damper
• ABC valve blocks
• ABC hydraulic fluid reservoir and filter
• ABC hydraulic lines and hoses
• ABC control module
• Body acceleration and level sensors
• ABC hydraulic fluid