Unless otherwise stated in the auction, Cruise Control Amplifiers won at auction carry a limited one-year warranty.
Very very few of our amplifiers fail... well less than one percent. But sometimes the amplifier is blamed when there is still something else wrong with the system. We test and issue test results for every unit returned under warranty. If the amp is truly defective or needs adjustment, we pay return shipping and will repair or exchange the amplifier. If the amp, however, tests perfectly, there is a $45 test, packing and return ground shipping fee.
The warranty does not cover shop labor and installation costs.
The warranty is void if the seal is broken or the case opened or if the power output section is blown due to mishandling. During initial installation in the case of the 14-pin amps with the motor-actuator system, care must be taken to be sure that the actuator does not draw excessive current and that the actuator arm moves freely. The only way to blow the amplifier output section is to plug into a bad actuator, apply the wrong volt-ages to certain connector pins. The actuator must be checked before installation of the amplifier. If the system is erratic or non-operative after installation of our amplifier, please check the actuator! A failure of the amplifier for this reason is not our fault. We expect that the Mercedes technician or vehicle owner observes a procedure that will protect against such amplifier failure.
Another instance where the warranty is void is in the case where there is faulty throttle linkage which causes binding or excessive throttle return spring pressure. This can put undue strain on the actuator which will cause it to fail prematurely and, in turn, damage the amplifier. Again, it is the responsibility of the Mercedes technician or vehicle owner to ensure proper linkage operation.
If possible, we will repair, recalibrate, and test an amplifier which we have previously repaired, with a blown output section, for $85. There are cases in which the amplifiers are damaged beyond repair.(Naturally, if you wish, we'll return the fried transistors to you for inspection...) Although this problem is fairly rare, we've seen several smoked modules.
We offer a lifetime warranty which extends the normal warranty for as long as the vehicle is owned by the same individual or organization. This service is available at any time during the normal warranty period.
We request a simple two-step procedure prior to return for warranty work. 1) Check boxes on a short "squawk sheet" (available from us) which tells us what may be wrong and 2) obtain a "return authorization number" so that we may track the return, test and repair/replacement of the unit.