EPC shows OEM front/rear license plate mounting is 0019846429 (5x16), plate to mounting 0019904236 (5x12). CA DMV requires f/r plates therefore, dealer is required to install f/r plate mounting at no cost to complete delivery furthermore plate attachment to same does not require a frame.

 

EPC shows OEM front/rear license plate mounting is 0019846429 (5x16), plate to mounting 0019904236 (5x12).

Thanks konigstiger for the info. These are the parts indicated on EPC. However, I went to the dealer with these part #s and they are just for the front license plate.

Part # 0019904236 (5x12) is somewhat of a sheet metal screw which you need since the front license bracket is a hard plastic material and the holes on there need to be threaded by a sheet metal screw so the license plate itself can be screwed securely onto the bracket. This screw is perfect length if you are mounting your front license plate without a license plate frame.

As for part# 0019846429 (5x16) this is a longer screw for mounting the front license bracket to the bumper. Don't need to worry about this one.

The license plate screws for the rear are completely different as there is a metal mounting plate adapter that already has pre-threaded holes. You need metric screws M6 1.0 (1.0 is the thread type). Default length is 16mm but you need 10mm if you wish to mount your rear license plate without a license frame otherwise the longer length will drill marks into the rear lid and with a gap between the plate and the screws. I can't find the M6 with 10mm length at my local hardware store. I will need to stick with the ones that came with our car M6 16mm (part# 007985006197) but will need a license frame on it for it to work.

I know there's not too much on this matter and no one really cares too much if the screws on your car already work. However, dealers just slap on whatever screws they have on their service bin upon delivery and no one knows what screws you really need for the car. This explains why some folks here complain about loose license plates. Anyhow I have attached both the front (left) and rear screws (right).

 

I know this is an old thread, but wanted to say 'thanks' for the info. I recently purchased a 2008 C300 and had the same license plate woes as described... And it is a personal irritant to me to have the wrong parts which damage the car and don't secure things correctly.

So, for anyone else experiencing this problem: The rear license plate screws for a 2008 C300 screw is definitely a metric "M6-1.0" The thread length might need some customization. I don't have a license plate frame so the 10mm length worked for me. And I got the 'Flat Head' screws which reduce thread length due to the tapering of the screw head. A longer length or head type ('Plat Head') might be better under different configurations.

Cheers.

 

Agree CCM.. I had to take the dealer screws back to the dealer because the ones they gave me were not quite right. Really bugs me - they should know exactly which screws are needed for a brand new $55k car.

 

Yup now I'm pissed. Bought M6 for the rear too big and now the little nut plate is spinning and can't remove it. Talk about BS. Love turns to hate quickly when I cannot drive my new to me 05 CLK55.

 

M5