Remove/Install Radar Sensor - AR30.30-P-1210W

Model 172.4, 218

with code 233 (DISTRONIC PLUS)

Model 172.4

with code 258 (COLLISION PREVENTION ASSIST PLUS)

Model 218

with code 258 (COLLISION PREVENTION ASSIST)

MODIFICATION NOTES

10.02.2016

Remove COLLISION PREVENTION ASSIST controller unit (A90), added

Operation step 6.4

Shown on model 172 up to model year 2016

Courtesy of MERCEDES-BENZ USA

Shown on model 218

Fig 1: Front DISTRONIC (DTR) Sensor Components Location - Model 172.4 (With Codes 233; 258 (Shown On Model 218))

Courtesy of MERCEDES-BENZ USA

	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove/install
1	Remove front bumper (1)	Model 172.4 with code 233 (DISTRONIC PLUS) Model 172.4 with code 258 (COLLISION PREVENTION ASSIST PLUS)	AR88.20-P-2000W
		Model 218 with code 233 (DISTRONIC PLUS) Model 218 with code 258 (COLLISION PREVENTION ASSIST)	AR88.20-P-2000EL
2	Remove impact absorber (4)	Model 172.4 with code 258 (COLLISION PREVENTION ASSIST PLUS) Model 218 with code 233 (DISTRONIC PLUS) Model 218 with code 258 (COLLISION PREVENTION ASSIST)
	General information on the impact absorber		AH88.20-P-1000-01A
3	Unclip mounting bar (5)	Model 218 with code 233 (DISTRONIC PLUS) Model 218 with code 258 (COLLISION PREVENTION ASSIST)
4	Unclip left inner radar sensor, front bumper (A86/1b2) or right inner radar sensor, front bumper (A86/1 b3) on holder (2)	Model 172 with code 233 (DISTRONIC PLUS) Pay attention to installation position.
5	Disconnect electrical connection (3)
6.1	Remove left inner radar sensor, front bumper (A86/1b2) or right inner radar sensor, front bumper (A86/1b3)	Model 172 with code 233 (DISTRONIC PLUS) Pay attention to installation position.
6.2	Remove DISTRONIC (DTR) sensor on the bumper at the front left (B29/2) or DISTRONIC (DTR) sensor on the bumper at the front right (B29/3) from the bumper	Model 218 with code 233 (DISTRONIC PLUS) Pay attention to installation position.
6.3	Remove COLLISION PREVENTION ASSIST controller unit (A90) F4	Model 218 with code 258 (COLLISION PREVENTION ASSIST) Pay attention to installation position.
6.4	Remove COLLISION PREVENTION ASSIST controller unit (A90)	Model 172.4 with code 258 (COLLISION PREVENTION ASSIST PLUS) The COLLISION PREVENTION ASSIST (A90) controller unit must engage in the bracket. Pay attention to installation position.
7	Install in the reverse order
8	Read out fault memory using the diagnostic system and delete
			AD00.00-P-2000-04A