Excessive Water Intrusion or Condensation of Halogen Headlight – 2016-2017 Mazda CX-3

Some customers may complain of condensation/fog inside the front halogen headlight. The halogen headlight assembly may be the cause.

 

Example of Light Unit With Condensation/Fog That Should Be Replaced Heavy/large amount of condensation on the lens is not normal.

 

1. Verify if the condition requires repair. Refer to TSB 09-003/16. Is a repair required?
   1. Yes – Proceed to step 2.
   2. No – This service alert does not apply.
2. Check the halogen headlight assembly lot number. Is the lot number before 69S?
   1. Yes – Replace the headlight assembly.

2. No – proceed to step 3.

 

Lot Number Identification
Subjected Headlights are DB4N-51-0K0 and DB4N-51-0L0, Halogen Headlight only
1st Digit		2nd Digit		3rd Digit
Year	Lot	Month	Lot	Day	Lot
2015	5	1	1	1	1
2016	6	2	2	2	2
2017	7	3	3	3	3
2018	8	4	4	4	4
2019	9	5	5	5	5
2020	0	6	6	6	6
		7	7	7	7
		8	8	8	8
		9	9	9	9
		10	X	10	A
		11	Y	11	B
		12	Z	12	C
				13	D
				14	E
				15	F
				16	G
				17	H
				18	J
				19	K
				20	L
				21	M
				22	N
				23	P
				24	Q
				25	R
				26	S
				27	T
				28	U
				29	X
				30	Y
				31	Z

 

3. Check for missing halogen headlight assembly bulb seals and/or socket covers. Refer to TSB 09-013/16. Are the seals missing.
   1. Yes –  Install missing seals.
   2. No – This service alert does not apply.

SA-001350