‘I’ve been a mechanic 55 years - an overlooked $400 car repair scam is driver’s nightmare’

Mechanic Scotty Kilmer has unveiled a way for drivers to verify the accuracy of a repair diagnosis before dishing out $400 for a power window motor assembly.

Scotty Kilmer leaning over car engine bay

Scotty Kilmer explaining the importance of a battery and alternator test before buying window motors (Image: Getty)

A mechanic working in garages since the 1960s has shown how garages can swindle customers into paying around $400 for an unnecessary repair. 

The auto technician, Scotty Kilmer, says in a YouTube video that this sales trick starts with a driver noticing their engine idling at a lower rate or car headlights getting dimmer when they move their car’s power windows up or down. 

Scotty (@scottykilmer) notes in his YouTube clip that you shouldn’t immediately condemn the power window’s motor in this situation— despite what some mechanics may say. 

Instead, Scotty suggests checking your vehicle’s battery and alternator under the hood first.

If you don’t want a garage to check your car’s battery and alternator, you can measure the components’ working capacity relatively straightforwardly using a multimeter device.

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A mechanic testing a car battery with a multimeter

Multimeters can measure the functioning capacity of car batteries and alternators (Image: Getty)

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The experienced technician says you can test these components’ working capacity in minutes, and their results may reveal something different than what your mechanic is stating. 

Scotty adds: “If the battery is low or the alternator is weak, it’ll often make the car idle a little weird or the headlights dim at night, and it’s really not the motor — it’s the battery or alternator not charging right.” 

This video’s mechanic gave an example of a customer he had who previously bought a driver-side window motor assembly but still dealt with dimming lights.

When Scotty took a closer look at his client’s car, he found that the vehicle’s alternator was weak, meaning the driver spent hundreds of dollars on an unnecessary repair.

However, Scotty says drivers dealing with light dimming or engine idling when their battery and alternator are working can skip spending around $400 at a dealership for a new window motor assembly. 

Instead, he recommends buying an aftermarket motor regulator assembly sold for under $100 at most discount auto stores.

Scotty clarifies that most drivers spend about $400 buying a new motor regulator assembly from dealerships since these businesses tend to sell the motor and regulator separately.

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