BMW Engine Codes | Turner Motorsport. You may come across many acronyms and short hand "codes" while shopping for parts for your BMW.
The BMW E- chassis and F- chassis codes are obvious. But another code refers to the type of engine used in your BMW. BMW engines evolve from one generation to the next but generally derive from one original design. For example, the inline- 6 cylinder engines in the E3. E3. 6, E3. 9, E4.
E5. 3, Z3 and Z4 can all trace their origin to the M5. With revisions and updates over the years it's unlikely that parts will simply interchange so knowing the specific engine type can be very helpful when sourcing parts. BMW has gone through several variations on the engine designations; from the 1. M" engine family (not to be confused with BMW Motorsport); from the 2. N engine code; from the mid 2.
B engine family. Below are charts detailing the BMW engine family codes with a handy de- coder image so you know how each code is broken down. We concentrated on engines used in the US market, as well as BMW Motorsport production (S code) and racing (P code) engines.
This list is some of the more common engine code designations that a US enthusiast may encounter. Engines may change from one type to another based on different factors, including model year and even geographical region.
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This list includes the engine code, number of cylinders, engine size, the BMW models it's typically found in, and other important information. We have intentionally left off engines not commonly available or known to the US market. M Code (1. 96. 4- 2. Regular Production Engines.
Engine Code. Engine Size (liters)# of Cylindersand layout# of Valves. Camshaft and Valve Timing.
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HP Rating. Torque Rating. Active Years. Example Models. Features. M1. 01. I4. 8SOHC9. 8- 1.
E2. 1 3. 20i, E3. M3. 1 turbo version = 1. M2. 02. 0- 2. 7. I6. SOHC1. 21- 1. 68. E2. 1 3. 23i, E3.
E3. 0 3. 25i, E3. M2. 0B2. 5 = 3. 25i engine. M2. 0B2. 7 = 3. 25e engine. M2. 12. 4. I6. 12.
SOHC8. 4- 1. 14. 11. M3. 02. 5- 3. 5. I6.
SOHC1. 75- 2. 08. E9 2. 80. 0, E2. 4 6. CSi, E2. 8 5. 35i, E3. L 8. 0: 1 compression. L 9. 0: 1 compression. M4. 01. 6, 1. 8. I4.
SOHC1. 02- 1. 13. E3. 0 3. 18i. Euro models. M4. 21. 8. I4. 16. DOHC1. 38. 12. 91.
E3. 0 3. 18is, E3. E3. 6 3. 18ti. S4. B2. 0 used in BTCC racing. M4. 41. 9. I4. 16.
DOHC1. 38. 13. 31. E3. 6 3. 18ti, Z3 1. US OBD- II models.
M5. 02. 0- 2. 5. I6. DOHC1. 50- 1. 89. E3. 4 5. 25i, E3. VANOS valve timing.
M5. 0TU2. 0- 2. 5. I6. 24. DOHC1. 50- 1. E3. 4 5. 25i, E3.
VANOS valve timing. M5. 22. 0- 2. 8. I6.
DOHC1. 50- 1. 90. E3. 6 3. 28i, E3. Z3 2. 8. VANOS on intake cam. M5. 2TU2. 0- 2. 8. I6. 24. DOHC1. 50- 1. E3. 9 5. 28i, E4. VANOS on intake and exhaust camscable- actuated throttle.
M5. 42. 2- 3. 0. I6. DOHC1. 68- 2. 28. E3. 9 5. 25i/5. 30i, E4. VANOS on intake and exhaust cams.
Drive- by- Wire throttle. M5. 62. 5. I6. 24. DOHC1. 92. 18. 12. E4. 6 3. 25i SULEVlow emissions engine for CA, MA, NY, VTM5. D3. 0T2. 3. 0. I6. DOHC2. 65. 42. 82. E9. 0 3. 35d, E7.
X5 3. 5d. US- spec M5. Diesel; US- specific SCR emissions system. M6. 03. 0- 4. 0. V8. DOHC2. 15- 2. 82. E3. 4 5. 30i, E3. LNikasil- lined block.
M6. 23. 5- 4. 6. V8. DOHC2. 32- 3. 42. E3. 9 5. 40i, E3.
E5. 3 X5 4. 6isnon- VANOS valve timing. M6. 2TU3. 5- 4. 4. V8. 32. DOHC2. 35- 2. E3. 9 5. 40i, E5. X5 4. 4iwith VANOS valve timing.
M7. 05. 0. V1. 22. SOHC3. 00. 33. 01.
E3. 1 8. 50i, E3. LBMW's first V1. 2M7. V1. 22. 4SOHC3. 20. E3. 1 8. 50ci, E3. LOBD- II compliant version of M7. M7. 3TU5. 4. V1. 22. SOHC3. 20. 36. 01.
E3. 8 7. 50i. Lalso used in Rolls- Royce models. M8. 8/1. 3. 5. I6. DOHC2. 72. 24. 31. E2. 6 M1used exclusively in the M1 supercar. M8. 8/3. 3. 5. I6. DOHC2. 82. 25. 11.
Euro E2. 4 M6. 35. CSirelated closely to S3. US M5/M6. S Code BMW Motorsport- designed Production Engines(names seem to follow the traditional M code logic above, regardless of year)S1. I4. 16. DOHC1. 95- 2. E3. 0 M3, E3. 0 3. M8. 8/S3. 8 engine design.
S3. 83. 5- 3. 8. I6. DOHC2. 52- 3. 35. E2. 8 M5, E2. 4 M6, E3. M5further development of M8. S5. 0 EU3. 0- 3. 2. I6. 24. DOHC2. 80- 3.
Euro E3. 6 M3, Euro MZ3not based on M5. VANOSS5. 0 US3. 0. I6. 24. DOHC2. 40. US E3. 6 M3, Japan- spec E3.
M3directly based on M5. S5. 23. 2. I6. 24. DOHC2. 40. 24. 01. US E3. 6 M3, US MZ3 Japan- spec E3.
M3directly based on M5. S5. 43. 2. I6. 24. DOHC3. 33- 3. 43. E4. 6 M3, MZ3, Z4 Mfurther development of Euro S5. B3. 2S5. 53. 0. I6. DOHC4. 24. 40. 62.
F8. 0 M3, F8. 2 M4. TVDI - Turbo Valvetronic Direct Injection. S6. 24. 9. V8. 32. DOHC3. 94. 36. 91. E3. 9 M5, E5. 2 Z8loosely based on M6. VANOSS6. 34. 4. V8.
DOHC5. 50. 50. 02. E7. 0 X5 M, E7. 1 X6 MMotorsport- built version of N6. S6. 3TU4. 4. V8. 32. Valvetronic. 56. 05. F1. 0 M5, F1. 2 M6. S6. 3 with Valvetronicand more boost.
S6. 3T2. 4. 4. V8. Valvetronic. 56. 75. F8. 5 X5. M, F8. 6 X6. MM5 S6. 3TU with higher compression. S6. 54. 0- 4. 4. V8.
DOHC4. 14- 4. 44. E9. 0 M3, E9. 2 M3 GTSbased on S8. V1. 0last naturally- aspirated M engine.
S7. 05. 6. V1. 24. DOHC3. 80. 41. 01. E3. 1 8. 50. CSi. Motorsport evolution of M7. S7. 0/2. 6. 0- 6. V1. 24. 8DOHC6. 27- 6.
Mc. Laren F1not based on an M7. Euro S5. 0S8. 55. V1. 06. 0DOHC5. 00. E6. 0 M5, E6. 3 M6technology derived from Formula 1. P Code BMW Motorsport Race Engines(names seem to follow the traditional M code logic above, regardless of year)M1. I4. 16. DOHC2. 50- 3. Formula 2, 3. 20ibased on M1.
M1. 2/M1. 3/1. 1. I4. 16. DOHC3. 50- 1,3. Group 5, March GTP, Brabham Formula 1single turbo, decimated n/a competitors before turbos were outlawed; up to 5. F1. M4. 93. 5. I6. DOHC4. 30+3. 10+1. CSLBMW Motorsport and Schnitzer developed engine for IMSA and Le Mans.
Loosely based on M1. S4. 2B2. 02. 0. I4. DOHC3. 00x. 19. 92- 1. E3. 6 3. 18is BTCCSuper. Touring engine, based on M4. P5. 0B3. 23. 2- 3.
I6. 24. DOHC4. 00- 4. E3. 6 M3 GTR, E4. M3based on Euro S5.
B3. 2, used in E3. PTG racecars and first E4. PTG cars. S7. 0/3. V1. 24. 8DOHC6. 50+x. Mc. Laren F1 GTRwinner of 1.
Hours of Le Mans; similar in design to S7. P7. 5B6. 06. 0. V1. DOHC6. 50+x. 19. 98- 2. BMW V1. 2 LMR Prototype, E5. X5/LMwinner of 1. Hours of Le Mans; ground- up evolution of S7. P5. 4B3. 23. 2- 3.
I6. 24. DOHC4. 25- 4. E4. 6 M3race engine based on S5.
ALMS prior to 4. 0 P6. V8. P6. 0B4. 04. 0. V8. 32. DOHC4. 44- 4. E4. 6 M3 GTRrace- only engine not based on a true production model. P5. 2/P5. 4B2. 02.
I6. 24. DOHC2. 60+x. E4. 6 3. 20i WTCCTouring Car engine based on M5. RPM rev limit. P4. B2. 02. 0. I4. 16. DOHC2. 75x. 20. 05- 2.
E9. 0 3. 20si WTCCbased on N4. E9. 0 3. 20si. P6. V8. 32. DOHC4. 80+x.
E9. 2 M3 GTevolution of P6. B4. 0P6. 5B4. 44. V8. 32. DOHC4. 80 (est.)3. E8. 9 Z4 GTE, E8. Z4 GT3based on S6.
B4. 4 from M3 GTS; engine differences between GT3 and GTE versions. P6. 64. 0. V8. 32. DOHC5. 00 (est.)3. E9. 2 M3 DTMclean- sheet design, not related to any production engine.
P8. 43. 0. V1. 04. Pneumatic. 92. 5+x. Williams. BMW F1.
RPM rev limit; 1,5. F1 rules)P8. 62. 4.
V8. 32. Pneumatic. BMW Sauber F1 Team.
RPM rev limit. N Code (2. Regular Production Engines. Beginning in the early- 2. BMW revised their naming strategy to get more info out of each character and make it easier to understand updates and revisions.
The new BMW engine designs were ground- up fresh designs with groundbreaking advancements in materials and technology. Turbocharging and Diesel engines were also introduced to the US market so BMW had to be more specific in their engine coding. Engine Code. Engine Size (liters)# of Cylindersand layout# of Valves. Camshaft and Valve Timing. HP Rating. Torque Rating. Active Years. Example Models. Features. N2. 02.
I4. 16. DOHC2. 41. F3. 0 3. 20i/3. 28isingle twin- scroll turbo,Valvetronic, direct injection. N5. 13. 0. I6. 24.
Valvetronic. 23. 01. E9. 0 3. 28i SULEVSULEV low emissions engine. N5. 2B3. 0K0. 3. 0.
I6. 24. Valvetronic. E9. 0 3. 25ialso known as 'low output' N5. KPN5. 2B3. 0M1. 3.
I6. 24. Valvetronic. E9. 0/E9. 2 3. 28i, Z4 3. Medium- output N5. KPN5. 2B3. 0O1. 3. I6. 24. Valvetronic. E9. 0 3. 30i, E6. Z4 3. 0si. High- output N5.
KPN5. 2B3. 0T1. 3. I6. 24. Valvetronic. F1. 0 5. 28i, F2. X3 2. 8i. Top- output N5. KP; highest torque of the N5. N5. 2TN5. 32. 5- 3. I6. 24. Valvetronic.
Euro E9. 0 3. 25i, Euro E6. Euro F1. 0 5. 25i. Euro- spec version for lower market Euro models.
N5. 43. 0. I6. 24. DOHC3. 06- 3. 35. E9. 0/E9. 2 3. 35i, E6. E8. 2 1. Mtwin- turbo, direct injection. N5. 53. 0. I6. 24. Valvetronic. 30. 2- 3.
E9. 2 3. 35i, F3. Valvetronic, direct injection. N6. 23. 6- 4. 8. V8. Valvetronic. 27. 2- 3.
E6. 0 5. 45i/5. 50i, E6. E7. 0 X5 4. 8naturally aspirated, Valvetronic. N6. 34. 4. V8. 32. DOHC4. 02. 44. 02. F1. 0 5. 50i, E7.
X6 5. 0i, F0. 2 7. Litwin turbo; 1st gen N6.