We have repaired actuators with as little as 28K on the clock, this means if units are listed on eBay for "BMW M3 Breaking", the chances are even if these are working now, its 99% likely they will fail in a few months.
BE CAREFUL: SCAMMERS: I have personally experienced in just the last few months, several units on eBay being sold as "taken from a write off - Untested" after purchasing these I found it HAD ALREADY been refurbished by a 3rd party and was STILL FAULTY:
ALSO: I have personally experienced units being sold as "Spares or Repair - In need of refurbishment" again on purchasing these units I have found they have ALREADY been refurbished and are still faulty.
MY RECOMMENDATION: If you decide to buy ebay actuators, I suggest as a preventive measure replacing the gears regardless, This way it ensures you do not have a board failure in the near future. Which could lead to a BLOWN Microprocessor!.
We will always help our clients and ensure if they used our services, we will have the dreaded limp mode fixed, even if this means swapping the entire actuator with a know tested refurbished unit.
• 90% of the time just changing gears alone will NOT resolve the fault as worn gears damage the electronic components.
• 90% of the time changing the gears and mosfets WILL Resolve throttle actuator failures.
• 10% there is other components that also get damaged with prolonged running with limp mode / faulty units. We can replace all components on the boards, test the units and return. We cannot replace microprocessors.
CHEAP GEARS - The plastic will fail within 12 months!