BMW 325i: Timing Belt Or Timing Chain? (1987 - 2006)

All BMW 325i engines from 1994 to 1995 and from 2001 to 2006 have a timing chain while the 325i engines from 1987 to 1993 have a timing belt. All are interference.

Scroll down to see detailed timing belt data for your particular model year of the BMW 325i.

BMW 325i Timing Belt Or Chain

Year	Engine	Belt Or Chain	Interference or Non-Interference
1994 - 1995, 2001 - 2006	2.5L, 3.0L	Timing Chain	Interference
1987 - 1993	2.5L	Timing Belt	Interference

Check out the Belt Or Chain specifications for other makes and models.

2006 BMW 325i - Timing Belt Or Chain

The 2006 BMW 325i has a timing chain and an interference engine.

2006 BMW 325i Timing Belt Or Chain

Engine	Belt Or Chain	Interference or Non-Interference	Replacement Interval (miles)
3.0L	Timing Chain	Interference	Lifetime

2005 BMW 325i - Timing Belt Or Chain

The 2005 BMW 325i has a timing chain and an interference engine.

2005 BMW 325i Timing Belt Or Chain

Engine	Belt Or Chain	Interference or Non-Interference	Replacement Interval (miles)
2.5L	Timing Chain	Interference	Lifetime

2004 BMW 325i - Timing Belt Or Chain

The 2004 BMW 325i has a timing chain and an interference engine.

2004 BMW 325i Timing Belt Or Chain

Engine	Belt Or Chain	Interference or Non-Interference	Replacement Interval (miles)
2.5L	Timing Chain	Interference	Lifetime

2003 BMW 325i - Timing Belt Or Chain

The 2003 BMW 325i has a timing chain and an interference engine.

2003 BMW 325i Timing Belt Or Chain

Engine	Belt Or Chain	Interference or Non-Interference	Replacement Interval (miles)
2.5L	Timing Chain	Interference	Lifetime

2002 BMW 325i - Timing Belt Or Chain

The 2002 BMW 325i has a timing chain and an interference engine.

2002 BMW 325i Timing Belt Or Chain

Engine	Belt Or Chain	Interference or Non-Interference	Replacement Interval (miles)
2.5L	Timing Chain	Interference	Lifetime

2001 BMW 325i - Timing Belt Or Chain

The 2001 BMW 325i has a timing chain and an interference engine.

2001 BMW 325i Timing Belt Or Chain

Engine	Belt Or Chain	Interference or Non-Interference	Replacement Interval (miles)
2.5L	Timing Chain	Interference	Lifetime

1995 BMW 325i - Timing Belt Or Chain

The 1995 BMW 325i has a timing chain and an interference engine.

1995 BMW 325i Timing Belt Or Chain

Engine	Belt Or Chain	Interference or Non-Interference	Replacement Interval (miles)
2.5L	Timing Chain	Interference	Lifetime

1994 BMW 325i - Timing Belt Or Chain

The 1994 BMW 325i has a timing chain and an interference engine.

1994 BMW 325i Timing Belt Or Chain

Engine	Belt Or Chain	Interference or Non-Interference	Replacement Interval (miles)
2.5L	Timing Chain	Interference	Lifetime

1993 BMW 325i - Timing Belt Or Chain

The 1993 BMW 325i has a timing belt and an interference engine.

1993 BMW 325i Timing Belt Or Chain

Engine	Belt Or Chain	Interference or Non-Interference	Replacement Interval (miles)
2.5L	Timing Belt	Interference	Lifetime

1992 BMW 325i - Timing Belt Or Chain

The 1992 BMW 325i has a timing belt and an interference engine.

1992 BMW 325i Timing Belt Or Chain

Engine	Belt Or Chain	Interference or Non-Interference	Replacement Interval (miles)
2.5L	Timing Belt	Interference	Lifetime

1991 BMW 325i - Timing Belt Or Chain

The 1991 BMW 325i has a timing belt and an interference engine.

1991 BMW 325i Timing Belt Or Chain

Engine	Belt Or Chain	Interference or Non-Interference	Replacement Interval (miles)
2.5L	Timing Belt	Interference	Lifetime

1990 BMW 325i - Timing Belt Or Chain

The 1990 BMW 325i has a timing belt and an interference engine.

1990 BMW 325i Timing Belt Or Chain

Engine	Belt Or Chain	Interference or Non-Interference	Replacement Interval (miles)
2.5L	Timing Belt	Interference	Lifetime

1989 BMW 325i - Timing Belt Or Chain

The 1989 BMW 325i has a timing belt and an interference engine.

1989 BMW 325i Timing Belt Or Chain

Engine	Belt Or Chain	Interference or Non-Interference	Replacement Interval (miles)
2.5L	Timing Belt	Interference	Lifetime

1988 BMW 325i - Timing Belt Or Chain

The 1988 BMW 325i has a timing belt and an interference engine.

1988 BMW 325i Timing Belt Or Chain

Engine	Belt Or Chain	Interference or Non-Interference	Replacement Interval (miles)
2.5L	Timing Belt	Interference	Lifetime

1987 BMW 325i - Timing Belt Or Chain

The 1987 BMW 325i has a timing belt and an interference engine.

1987 BMW 325i Timing Belt Or Chain

Engine	Belt Or Chain	Interference or Non-Interference	Replacement Interval (miles)
2.5L	Timing Belt	Interference	Lifetime

Timing Belt Basics

The primary purpose of the timing belt or timing chain is to maintain the timing (syncronization) between the crankshaft and the camshaft(s).

A timing belt is made of a rubber compound while a timing chain is made of chain similiar to a bicycle chain.

A timing belt wears out over time and must be replaced at the manufacturer's specified interval. Timing belt failure can result in serious engine damage.

Although a timing chain will wear over time it is usually good for the lifetime of the engine but it should be routinely inspected.