Spark and glow plugs

Citroën originally fitted Champion spark plugs but specifies Eyquem and sometimes Bosch equivalents as well. The best choice would be the first one, however, there is a major problem: Champion and Bosch plugs are manufactured at many plants all around the world. Although the technology is supposed to be the same everywhere, there are significant differences between the quality of those plugs. Those manufactured in the Belgian and British factories of Champion and in German plants of Bosch are excellent but those from other countries are average or often quite bad. You can, unfortunately, find no indication on the package disclosing the actual production plant. So, unless you can be absolutely sure where your plugs come from, you should use Eyquem instead which is not worse than Champion by any means and is manufactured in a consistent quality.

Model and ORGA
[engine]
Spark plug
Eyquem Champion Bosch
old code new code
BX 11
3522–4205 [109LA]
4206– [H1A]
C 62 LJS
FC 52 LS*
S 281 YC
C 9 YCX*
S 9 YCC
RC 9 YCC*
H 7 DC
BX 14
3522–4192 [150A/C]
[150Y]
4193– [K1G]
C 62 LJS, C 52 LJS1
?
FC 52 LS*
S 281 YC
BN 9 Y
C 9 YCX*
S 9 YCC
?
RC 9 YCC*
H 7 DC
?
BX 14i FC 52 LS* C 9 YCX* RC 9 YCC*
BX 15/16 RE
3522–3856
3857–
C 72 LJS
FC 52 LS*
S 281 YC
C 9 YCX*
S 9 YCC
RC 9 YCC*
H 6 DC
BX 16 xS
3522–3856
3857–4157
4158– [171Z, B2C]
C 72 LJS
C 62 LJS, FC 52 LS2
FC 52 LS*
S 279 YC
S 279 YC
C 7 YCX*
S 7 YCC
S 7 YCC
RC 7 YCC*
H 6 DC
H 6 DC
BX 16 xI FC 62 LS* C 7 YCX* RC 7 YCC*
BX 19 xS
3522–3856 [159A]
3857– [D2A]
C 72 LJS
FC 52 LS*
S 279 YC
C 9 YCX*
S 7 YCC
RC 9 YCC*
H 6 DC
BX 19 xI
3522–3851

3852– [D6A]
3857–4227
4228– [DFZ?]

FC 62 LS*
C 62 LJS3
FC 62 LS*
?
FC 52 LS*4
C 7 YCX*
S 281 YC3
C 7 YCX*
S 281 YC3
C 9 YCX*4
RC 7 YCC*
S 9 YCC3
RC 7 YCC*
S 9 YCC3
RC 9 YCC*4

H 7 DC3

H 7 DC3

BX 19 GTi 16V ? ? ? ?
* Flat plug seat with washer
(1) Sweden
(2) Austria, Switzerland
(3) Germany, Switzerland, Austria, Netherlands
(4) Germany, Switzerland, Netherlands, Sweden, Australia

The following engines use diesel fuel and have only glow plugs.

Engine type Champion Bosch Beru
161A (XUD7)   0 250 201 019???
0 250 201 005
01 00 221 118
A8A (XUD7TE)  
AJZ (XUD7TE/Y)  
162 (XUD9)  
D9B (XUD9A)  
DJZ (XUD9Y)