Case closed before delivery of item: | Buying

wafane_12 · 2025-09-04T15:19:53.714000Z

Order #: 17-13495-80975 I had purchased this item for $526.00 from an eBay seller called a MAP Sensor for my 1974 Mercedes Benz 450slc D-Jet M117.982 engine C107.024 coupe, as I had also described this to the seller. Then soon after I discovered that it was the wrong part for my particular car engine D-Jet M117.982. Before the part was delivered, I filed for a return/refund. My request was denied and the case for this item was closed before the part was delivered. When the part was delivered, the first thing I noticed was the black cap/cover is missing. The cap in place shows this unit is true, but once removed, it shows/exposes a crucial adjustment may have been tampered with. Making this MAP sensor useless. The piece missing is the black cap at one end of the MAP Sensor, exposing a calibrating adjustment. According to the Mercedes manual and a Bosch professional, the black cap that was removed should never have been removed. The black cap ensures and guarantees that this device is calibrated to certain specs from the factory and has the same correct specs from day one. The function of the Manifold Absolute Pressure sensor on a 1974 Mercedes is an electromechanical device, not a solid-state electronic sensor. It consists of a diaphragm, an armature shaft, and coils. The engine's vacuum (or lack thereof) changes the position of the armature, which varies the inductance of the internal coils.This changing inductance is a critical part of how the ECU determines the injection pulse for the fuel injectors. It is used in combination with signals from other sensors to calculate the correct amount of fuel to deliver.All I am trying to do is to get my car to run properly, so I can drive it!The Seller and eBay decline to accept a return and refund of my $526.00. Right now I feel like I am being ripped off and this is not right! What would you do, or for that matter, what should/can I do?Thank you for listening/reading my dilemma. Your input is appreciated.Tom

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