Mercedes-Benz W202 Owner's Manual page 108

Identification Labels
When ordering spare parts, please specify vehicle
identification and engine numbers.
1 Certification Label
2 Vehicle Identification No.
3 Identification Label lower edge of windshield)
4 Engine No.
C 230, rear left,
C 280, rear right,
C 43 AMG, rear right
5 Body No. and Paintwork No.
6 Emission Control Label
7 Information Label California version Vacuum line
routing for
emission control system