Engine code		ALZ	AVJ	BFB	ALT	AWA	BEX	BKB	BGB	BUL	BWE	BPJ
Emissions category		EU IV	EU IV	EU IV	EU IV	EU IV	EU IV	EU III	EU IV	EU IV	EU III	EU IV
Number of cylinders/valves per cylinder		4 / 2	4 / 5	4 / 5	4 / 5	4 / 4	4/5	4/5	4/4	4/4	4/4	4/4
Displacement	L	1.6	1.8	1.8	2.0	2.0	1.8	1.8	2.0	2.0	2.0	2.0
Output	KW at RPM	75/5600	110/5700	120/5700	96/5700	110/6000	140/5700	120/5700	147/5700	162/5900	147/5700	125/4300-6000
Torque	Nm at RPM	148/3600	210/ 1750 ... 4600	225/ 1950...4700	195/3300	200/3500	240/ 1980...5400	220/1750	280/2000	300/2200-4000	280/2000	280/1800-4200
Stroke	Mm	77.4	86.4	86.4	92.8	92.8	86.4	86.4	92.8	92.8	92.8	92.8
Bore	Mm	81.0	81.0	81.0	82.5	82.5	81.0	81.0	82.5	82.5	82.5	82.5
Compression ratio		10.3	9.3	9.5	10.3	11.5	9.5	9.5	10.5	10.3	10.3	10.3
Fuel injection/Ignition		Simos 3.4	ME 7.5 Motronic	ME 7.1 Motronic	ME 7 Motronic	MED 7.1 Motronic	MED 7.1 Motronic	MED 7.1 Motronic	TFSI Motronic	TFSI Motronic	TFSI Motronic	TFSI Motronic
RON	Min.	95 (unleaded) 1*)	95 (unleaded) 1*)	95 (unleaded) 1*)	95 (unleaded) 1*)	98 (unleaded) 2*)	98 (unleaded) 2*)	95 (unleaded) 1*)	98 (unleaded) 2*)	98 (unleaded) 2*)	98 (unleaded) 2*)	98 (unleaded) 2*)

1*) 91 RON standard unleaded gasoline is permissible, however with decreased power output.

2*) 95 RON Super unleaded gasoline is permissible, however with decreased power output.

Gasoline engines

Engine code		BDV	AMM	ASN	BBJ	AUK	BBK	BNS
Emissions category		EU IV	EU IV	EU IV	EU IV	EU IV	EU IV	EU IV
No. of cylinders		6	6	6	6	6	8	8
Valves per cylinder		5	5	5	5	4	5	4
Displacement	L	2.4	2.4	3.0	3.0	3.2	4.2	4.2
Output	KW at RPM	125/6000	120/6000	162/6300	160/6300	188/6400	253/7000	309/7800
Torque	Nm at RPM	230/3200	230/3200	300/3200	300/3200	320/3400	410/3500	430/5500
Bore	Mm	81.0	81.0	82.5	82.5	84.5	84.5	84.5
Stroke	Mm	77.4	77.4	92.8	92.8	92.8	92.8	92.8
Compression ratio		10.5	10.5	10.5	10.5	12.5	11.0	12.5
Fuel injection/ Ignition system		Motronic ME 7.1.	Motronic ME 7.1.	Motronic ME 7.1.	Motronic ME 7.1.	FSI Motronic Hitachi	Motronic ME 7.1.1	Motronic MED 9.1
RON	Min.	95 (unleaded) 1*)	95 (unleaded) 1*)	98 (unleaded) 2*)	98 (unleaded) 2*)	98 (unleaded) 2*)	98 (unleaded) 2*)	98 (unleaded) 2*)

1*) 91 RON standard unleaded gasoline is permissible, however with decreased power output.

2*) 95 RON Super unleaded gasoline is permissible, however with decreased power output.

Diesel engines

Engine code		AVB	AWX, AVF	AKE	AYM, BCZ, BDG	BFC	BAU, BDH	BSG	BPP	BKN
Emissions category		EU III	EU III	EU III	AYM, BCZ EU III BDG EU III + D4	EU III	BAU EU III BDH EU III + D4	EU IV	EU IV	EU IV
Number of cylinders/valves per cylinder		4 / 2	4 / 2	6 / 4	6 / 4	6/4	6 / 4	6/4	6/4	6/4
Displacement	L	1.9	1.9	2.5	2.5	2.5	2.5	2.7	2.7	3.0
Output	KW at RPM	74/4000	96/4000	132/4000	114/4000	120/4000	132/4000	120/4000	132/4000	150/4000
Torque	Nm at RPM	250/1900	* See footnote 285/ 1750 ...2750	370/ 1500 ... 2500	310/ 1500 ... 2500	310/ 1400 - 3600	370/ 1500... 2500	380/ 1500-3200	380/ 1500-3200	450/ 1500-3000
Bore	Mm	79.5	79.5	78,3	78,3	78,3	78,3	83.0	83.0	83.0
Stroke	Mm	95.5	95.5	86.4	86.4	86.4	86.4	83,1	83,1	91,5
Compression ratio		18.5	18.5	18.5	18.5	18.5	19.5	17.5:1	17.5:1	19.5
Fuel injection/Ignition		Diesel (direct injection)	Diesel (direct injection)	Diesel (direct injection)	Diesel (direct injection)	Diesel (direct injection)	Diesel (direct injection)	Diesel (direct injection)	Diesel (direct injection)	Diesel (direct injection)
CZ min.		51	51	51	51	51	51	51	51	51

* Engine code AVF 310 Nm

Diesel engines

Engine code	BKE	BLB	BNA	BPW	BRC	BRF	BVF	BRD	BRE	BVG	BVA	BRB	ASB
Emissions category	EU IV	EU IV	EU IV	EU IV	EU IV	EU IV	EU IV	EU IV	EU IV	EU IV	EU IV	EU IV	EU IV
Number of cylinders/valves per cylinder	4/2	4/4	4/4	4/2	4/2	4/4	4/4	4/4	4/4	4/4	4/4	4/2	6/4
Displacement	1.9	2.0	2.0	2.0	2.0	2.0	2.0	2.0	2.0	2.0	2.0	1.9	3.0
Output kW/rpm	85/4000	103/4000	100/4000	103/4000	100/4000	100/4000	93/4000	125/4000	103/4000	89/4000	120/4000	85/4000	171/4000
Torque	285/1900	320/ 1750-2500	320/ 1750-2500	320/ 1750-2500	320/ 1750-2500	320/ 1750-2500	320/ 1750-2500	350/ 1750-2500	320/ 1750-2500	320/ 1750-2500	350/ 1750-2500	285/1900	450/ 1500-3000
Bore	79.5	81.0	81.0	81.0	81.0	81.0	81.0	81.0	81.0	81.0	81.0	79.5	83.0
Stroke	95.5	95.5	95.5	95.5	95.5	95.5	95.5	95.5	95.5	95.5	95.5	95.5	91,5
Compression ratio	19,0	18.5	18.5	18.5	18.5	18.5	18.5	18.5	18.5	18.5	18.5	19,0	19.5
Fuel injection/Ignition	Diesel (direct injection)	Diesel (direct injection)	Diesel (direct injection)	Diesel (direct injection)	Diesel (direct injection)	Diesel (direct injection)	Diesel (direct injection)	Diesel (direct injection)	Diesel (direct injection)	Diesel (direct injection)	Diesel (direct injection)	Diesel (direct injection)	Diesel (direct injection)
Diesel particle filter				X	X	X	X	X	X	Installation possible	X	Installation possible	X
CZ min.	51	51	51	51	51	51	51	51	51	51	51	51	51

Gasoline engines

Code letters		BPG	BWT
Displacement	Ltr.	1.984	1.984
Output	KW at 1/rpm	147/5700	147/5700
Torque	Nm at rpm	280/2000	280/1800
Bore	Dia. mm	82.5	82.5
Stroke	Mm	92.8	92.8
Compression ratio		10.5	10,5
RON		98 1)	98 1)
Fuel injection and ignition system		FSI	FSI
Ignition sequence		1-3-4-2	1-3-4-2
Knock control		Yes	Yes
Charging		Yes	Yes
Exhaust gas recirculation		No	No
Variable intake manifold		No	No
Variable valve timing		Yes	Yes
Secondary air injection (AIR)		No	No
1) Unleaded RON 95 is also permissible, although with reduced power.

Engine overview Audi S4 B7

Engine overview