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I asked a service rep at Classic BMW in Plano that question and he said "never".
The 740 has a timing chain, not a timing belt. Cars with timing belts usually have to change it every 80-100k miles, but this does not apply to timing chains. If your timing chain is intact, you should not have to have it replaced. Chains do not stretch or wear out.
More likely, if you have a E38 (1994-2001), the timing chain may rattle, which is NOT an indication of a problem with the timing chain. There is a timing chain tensioner that loses its ability over time to apply proper tension to the chain, and that is a relatively easy and inexpensive replacement. Another well-known problem is that you may eventually need to replace the timing chain GUIDES, which is plastic and can wear and break off over time.
What else can I help you with?
Is 1995 BMW 740 use timing belt or chain?
It must be a timing CHAIN because the Gates website ( they make timing belts etc ) does not list a timing belt for it
How do I set the timing on a 2001 BMW 740?
The timing chain is slowly set as the mechanic tightens the thread.
How do you set timing on BMW 740il?
how do I set the timing on a BMW 740
What is the timing mark for the crankshaft on the 1989 740 turbo Volvo?
The timing mark for the crankshaft on the 1989 Volvo 740 Turbo is typically located on the harmonic balancer. It should align with a corresponding mark on the engine block or timing cover when the engine is at top dead center (TDC) on the first cylinder. This alignment ensures proper timing for the engine's operation. Always refer to the service manual for specific details regarding your engine's configuration.
How do I get my 740 gl Volvo out of tow overdrive gear?
change the overdrive sensor should be on the left side of the gear box.
How much will it cost to replace a 1997 BMW 740 i timimg chain guides?
Replacing the timing chain guides on a 1997 BMW 740i can cost between $1,500 to $3,000, depending on labor rates and parts availability. The complexity of the job often requires significant labor, as accessing the timing chain guides involves removing several engine components. It's advisable to get quotes from multiple mechanics or specialized BMW service centers for a more accurate estimate.
How long will it take to go 740 miles going 75 mph?
740 miles, 75 mph. 740 divided by 75 = 9.86667. 9 hours and some change. To figure out the "change" we multiply .86667 by 60 and get 52.0002. Answer is 9 hours and 52 minutes.
Dashboard lights are all on in my 740 Volvo?
check all tour belts. it usually means that your timing belt has slipped.
How much oil do you use for an oil change in a 1991 Volvo 740 Turbo SE?
4 quarts in the non turbo so should be around the same
How do you change a water pump on a 1992 Volvo 740?
http://www.volvoclub.org.uk/faq/WaterPumpChange.html
How do you reset the oil change light on an BMW 740 1998?
To reset the oil change light on a 1998 BMW 740, first, turn the ignition key to the "ON" position without starting the engine. Then, press the gas pedal three times within five seconds. After that, turn the ignition off and back on; the oil change light should be reset. If it doesn't reset, repeat the process to ensure it was done correctly.
How do you change the fuel filter on a 1998 BMW 740il?
how u change fuel filter on 1998 BMW 740 il
