I installed the Accusump to solve the renowned startup rattle that has plagued the Audi S4 B6 4.2 V8 engine.
My engine with 74,000 miles was sweet after this initial startup rattle but I wasn’t expecting this to repair any worn or broken parts but to help prevent further damage.
The kit with an electric valve for remote operation.
The bumper is removed as that is where it will be mounted.
This picture is looking at the back of an engine, just below the oil filter housing, this engine is out of the car and sitting on the ground so it won’t look quite like this from above, this is the only place to make the connection, just remove the oil pressure switch and the reducing bush.
Marked in red is the oil pipe with a connection at the base of the oil filter housing where the oil pressure switch was located.
The oil pressure switch will be refitted and a hole drilled and tapped just where the red line changes direction, em, this will done off the engine for obvious reasons!
I found that a tap with the correct thread for the oil pressure switch was hard to get hold of
The Oil pressure switch is now fitted
There arent many places on an S4 that aren’t occupied with some piece of equipment but inside the alloy bumper is the perfect spot and a snug fit.
Drill a hole for each clamp bolt, the nut is fitted on the other side and the thing is held tight with no vibration.
I built a timer complete with buzzer that sounds (quietly) each time the ignition is powered prior to starting, it’s set to stop after a few seconds, this gives the cold oil enough time to travel to the chain tensioners as this is not instant, a good idea to remind other drivers.
My engine is now rattle free.
This system will prolong the life of any engine.