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Test Group Identification

BMW supplies test group information in the following 6 categories:

Specific engine family test group identification number (for example: YBMXT04.4E53  ) can be found on emission label in engine compartment. To cross reference test group category (catalyst monitoring, misfire monitoring, etc.) see BMW TEST GROUP IDENTIFICATION  table.

BMW TEST GROUP IDENTIFICATION

Engine Family Test Group (1) Engine Code/Displacement Models
Catalyst Monitoring 
YBMXT04.4E53  M62/4.4L V8 X5
YBMXT04.453M  M62/4.4L V8 X5
YBMXV02.8LEV  M52/2.8L V6 Z3 2.5L, Z3 2.8L, Z3 Coupe, 328i, 328Ci, 323i, 323Ci, 323iCab, 323i Tour, 528i & 528Ti
YBMXV03.2S52  S52/3.2L V6 M3, M Coupe & M Roadster
YBMXV04.4LEV  M62/4.4L V8 540i, 540iS, 540i PL, 540iT, 740i, 740iL, 740iS & 740il PL
YBMXV04.9S62  S62/4.9L V8 M5 & Z8
YBMXVO5.4LEV  M73/5.4L V12 750iL & 750il PL
Misfire Monitoring 
YBMXT04.4E53  M62/4.4L V8 X5
YBMXT04.453M  M62/4.4L V8 X5
YBMXV02.8LEV  M52/2.8L V6 Z3 2.5L, Z3 2.8L, Z3 Coupe, 328i, 328Ci, 323i, 323Ci, 323iCab, 323i Tour, 528i & 528Ti
YBMXV03.2S52  S52/3.2L V6 M3, M Coupe & M Roadster
YBMXV04.4LEV  M62/4.4L V8 540i, 540iS, 540i PL, 540iT, 740i, 740iL, 740iS & 740il PL
YBMXV04.9S62  S62/4.9L V8 M5 & Z8
YBMXVO5.4LEV  M73/5.4L V12 750iL & 750il PL
Evaporative System Monitoring 
YBMXT04.4E53  M62/4.4L V8 X5
YBMXT04.453M  M62/4.4L V8 X5
YBMXV02.8LEV  M52/2.8L V6 Z3 2.5L, Z3 2.8L, Z3 Coupe, 328i, 328Ci, 323i, 323Ci, 323iCab, 323i Tour, 528i & 528Ti
YBMXV03.2S52  S52/3.2L V6 M3, M Coupe & M Roadster
YBMXV04.4LEV  M62/4.4L V8 540i, 540iS, 540i PL, 540iT, 740i, 740iL, 740iS & 740il PL
YBMXV04.9S62  S62/4.9L V8 M5 & Z8
YBMXVO5.4LEV  M73/5.4L V12 750iL & 750il PL
Secondary Air System Monitoring 
YBMXT04.4E53  M62/4.4L V8 X5
YBMXT04.453M  M62/4.4L V8 X5
YBMXV02.8LEV  M52/2.8L V6 Z3 2.5L, Z3 2.8L, Z3 Coupe, 328i, 328Ci, 323i, 323Ci, 323iCab, 323i Tour, 528i & 528Ti
YBMXV03.2S52  S52/3.2L V6 M3, M Coupe & M Roadster
YBMXV04.4LEV  M62/4.4L V8 540i, 540iS, 540i PL, 540iT, 740i, 740iL, 740iS & 740il PL
YBMXV04.9S62  S62/4.9L V8 M5 & Z8
YBMXVO5.4LEV  M73/5.4L V12 750iL & 750il PL
Fuel System Monitoring 
YBMXT04.4E53  M62/4.4L V8 X5
YBMXT04.453M  M62/4.4L V8 X5
YBMXV02.8LEV  M52/2.8L V6 Z3 2.5L, Z3 2.8L, Z3 Coupe, 328i, 328Ci, 323i, 323Ci, 323iCab, 323i Tour, 528i & 528Ti
YBMXV03.2S52  S52/3.2L V6 M3, M Coupe & M Roadster
YBMXV04.4LEV  M62/4.4L V8 540i, 540iS, 540i PL, 540iT, 740i, 740iL, 740iS & 740il PL
YBMXV04.9S62  S62/4.9L V8 M5 & Z8
YBMXVO5.4LEV  M73/5.4L V12 750iL & 750il PL
Oxygen Sensor Monitoring 
YBMXT04.4E53  M62/4.4L V8 X5
YBMXT04.453M  M62/4.4L V8 X5
YBMXV02.8LEV  M52/2.8L V6 Z3 2.5L, Z3 2.8L, Z3 Coupe, 328i, 328Ci, 323i, 323Ci, 323iCab, 323i Tour, 528i & 528Ti
YBMXV03.2S52  S52/3.2L V6 M3, M Coupe & M Roadster
YBMXV04.4LEV  M62/4.4L V8 540i, 540iS, 540i PL, 540iT, 740i, 740iL, 740iS & 740il PL
YBMXV04.9S62  S62/4.9L V8 M5 & Z8
YBMXVO5.4LEV  M73/5.4L V12 750iL & 750il PL

(1) Test group reference identification can be found on underhood emission label. LEV stands for Low Emission Vehicle  . U1LEV stands for Ultra Low Emission Vehicle  . TLEV stands for Transitional Low Emission Vehicle  .