The counter sentence
This is the dealer-boxed part for that VIN. I'll write the part number and the supersession if there is one.
Do not say 'OEM is the only safe part' on a filter or a CAPA-certified panel. That is a preference, not physics.
Owner's book · not a shop
Know the car. Then the window. Factory specs in plain English — don't authorize until you can say this at the counter.
Parts counter
Beginner · short stepsExpert · spec · code · mm
Ask the VIN. OEM, aftermarket, or CAPA — say which.
OEM vs aftermarket vs CAPA body. No fake live inventory. No TecDoc interchange.
05 · Parts counter
This is the dealer-boxed part for that VIN. I'll write the part number and the supersession if there is one.
Do not say 'OEM is the only safe part' on a filter or a CAPA-certified panel. That is a preference, not physics.
Ask 01
Year / make / model / last 8 of VIN
The catalog forks on the VIN more than the owner thinks.
Ask 02
Engine and fuel
2.0T vs hybrid vs diesel. Filters and coils are not interchangeable.
Ask 03
Options that change the SKU
Tow, AWD, Brembo, LED vs halogen, sunroof drain, TPMS.
Ask 04
Old part number or a photo of the box
Supersessions lie. The box on the shelf last time is a clue.
Ask 05
Who is installing
DIY needs the sensor and the hardware. A shop may have the grease.