BMW-4-R-V pre-programmed electronic ignition distributor

Cylinders	4
Brand	BMW
Cap type	Straight
Coil charging time-out	After 1 second, coil current is turned off
Environmental temperature	-30 – 100 °C
IE (D-jetronic support)	No
Maximum advance	40 degrees crankshaft
Model	Switch
Operating voltage	4-15V
Rotation direction	CW & CCW
RPM range	500-8000 RPM
Spark balancing	<0.5 degrees
Vacuum	Yes
Wires	Black: coil '-', Red: ignition key (battery 6V / 12V)

The 123\BMW-4-R-V is designed for M10 engines, in the BMW :

– 1600, 1602, 1602Ti
– 1800, 1800Ti, 1802
– 2000, 2000Ti, 2000Tii
– 2002, 2002Ti, 2002Tii, 2002Turbo
– 316, 318, 518, 320, 520 (before 1978!!)

The gear on the BMW 4-R-(V) causes the ignition to turn Clockwise.
If you have a newer type M10 engine (e.g. in the BMW E21 after 1978) a gear that turns Counter-Clockwise (CCW) is needed, as well as a distributor to which it fits.
You need to transfer this gear from the old ignition.

The 123\Switch units are easy to install. Preprogrammed original manufacturer ignition curves.
By selecting 1 of 16 available advance curves, this electronic distributor is suitable for many engines
Please take a look in the advance curve table of the specific unit for available advance curves.

BMW-4-R-V = BMW stands for the 123ignition type
BMW-4-R-V = 4 stands for the number of cylinders
BMW-4-R–V   = R stands for straight distributor cap
BMW-4-R-V   = V stands for vacuum advance

How to install a 123ignition distributor

Download the manual

Download manual

Tune+ App Manual

Where to buy?

Do you want to know where to buy the 123Ignition in your area? Check out the dealer page!

Find my store

curve	advance starts [rpm crankshaft]	max. advance [rpm]	[degr. crankshaft]	vac. adv. starts [mmHg]	max. vac. adv. [mmHg]	[degr.]	replaces	remark
0	700	3800	29,0	100	225	10,0	BOSCH 0 231 180 004	1600 - 1602 - 1800 - 1802 - 518
1	700	2700	27,0	125	200	10,0	BOSCH 0 231 180 005	2000 - 2002
2	750	2400	30,0	125	225	10,0	BOSCH 0 231 115 045 & 071	1600 - 1602 - 1600Ti - 1800Ti - 2002
3	1000	4000	34,0	100	300	10,0	BOSCH 0 231 188 001	1502
4	1000	3500	30,0	100	300	10,0	BOSCH 0 231 151 008	1602Ti - 2000Ti - 2000Tii - 2002Tii - 520i
5	600	2400	30,0	100	300	10,0	BOSCH 0 231 129 026	2002 - 2002Ti - 2000Cs
6	1000	1500	22,0	100	300	10,0	BOSCH 0 231 180 014	2002Turbo
7	1000	5400	30,0	150	250	12,0	BOSCH 0 231 181 017	1502 - 316 - 318 - 518
8	1000	4600	32,0	150	250	12,0	BOSCH 0 231 181 016	318 - 320 - 520
9	1000	3800	26,0	100	300	10,0	BOSCH 0 231 168 017 & 181 022	320i - 520i
A	1000	1500	22,0	Retard		10,0	BOSCH 0 231 180 014	2002 Turbo
B	1000	5400	30,0	Retard		10,0	BOSCH 0 231 181 017	1502 - 316 - 318 - 518
C	1000	4600	32,0	Retard		10,0	BOSCH 0 231 181 016	318 - 320 - 520
D	1000	3800	26,0	Retard		10,0	BOSCH 0 231 168 017 & 181 022	320i - 520i
E	700	3800	29,0	100	225	10,0	BOSCH 0 231 180 004	1600 - 1602 - 1800 - 1802 - 518
F	700	3800	29,0	100	225	10,0	BOSCH 0 231 180 004	1600 - 1602 - 1800 - 1802 - 518

BMW-4-R-V

How to install a 123ignition distributor

Download the manual

Tune+ App Manual

Where to buy?

RELATED PRODUCTS

TUNE+-6-R-V-BMW

Fiat-500

Citroën-4-R

Citroën-4-R-V

TUNE-6-R-V-BMW