| Yr | Cyl | Desc | UNIV | DF | PK |
|---|---|---|---|---|---|
| 1992-1993 | 6 | All 525i models except 2.5L, 24 valve E/34 | 2910 | N/A | N/A |
| 1991-1995 | 6 | 1991 - 3/1995, All 525i models with 2.5L, 24 valve E/34 | 2915 | 9072 | N/A |
| 1989-1991 | 6 | All models with 2.5L engine | 2912 | 9348 | N/A |
| 1987-1988 | 6 | All models with 2.5L engine | 2912 | 9074 | N/A |