LenniePaz

I need new spark plugs and all my research tells me these are the right ones, but for some reason the site says they don't fit? Are they the correct ones? 2019 GLC 300

streborx

Your MB sparkplugs are probably re-branded Bosch. Go to boschsparkplugs.net and enter your vehicle info to see which Bosch plug(s) fits. If you really want MB branded plugs, then go to one of the online parts distributors such as autohausaz and enter the Bosch plug number and see what other plugs are listed as compatible.

I have found searching directly for MB parts by vehicle on distributor sites to be notoriously inaccurate. Parts listed as fitting don't fit and parts listed as not fitting do fit.

sn202020

NGK seems to be MB OEM supplier.

search keywords
SILZKFR8E7S A0041597903 90654
https://www.pelicanparts.com/More_In...159-79-03-M220

SILZKFR8H7S A2701590700 92725
https://www.pelicanparts.com/More_In...7-00-M220&bc=c

streborx

NGK is a high quality brand -- just installed a set in my Rubicon replacing the OE Champions.

Lagtime

I just bought new plugs at the dealer for my wife's 2019 GLC300. They used the VIN to look up the P/N, which is the A 270 159 07 00 you have above.

LenniePaz

Thanks! I bought a set of the Bosch.