Quick Answer: Bmw E46 Timing Chain?

Do you need to change the timing chain on a BMW?

BMW and MINI use Timing Chains in almost every model of engine that they produce.It is recommended to replace your timing chain before failure as repair prices can become very high from internal engine damage. From experience the life of these timing chains are 90,000 miles or 9 years.

Does a BMW E46 have a timing belt or chain?

BMW 3 Series Timing Chain or Timing Belt List

BMW 318I
MODEL YEAR ENGINE BELT / CHAIN
1998 – 2006 (E46, fourth generation) 1951cc straigh 4 M47D20 timing chain
1995cc straight 4 M47TUD20 timing chain
2005 – 2013 (E90 fifth generation) 1995cc straight 4 M47TUD20 timing chain

How much does it cost to replace a timing chain on a BMW?

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The average cost for a BMW 328i timing chain tensioner replacement is between $707 and $857. Labor costs are estimated between $572 and $721 while parts are priced at $136. This range does not include taxes and fees, and does not factor in your unique location.

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Which BMW engines have timing chain Problems?

BMW Diesel Engine – Timing Chain Failure



BMW timing chains have snapped on a range of models across the 1, 3 & 5 Series, most commonly affecting the N47 diesel. We also rebuild M57 & N57 diesel engines, BMW petrol engines & also BMW Minis.

How do you diagnose a bad timing chain?

Common signs of a faulty timing chain include engine misfires, metal shavings found in the oil, and rattling sounds from the engine while idling.



  1. Engine misfires or runs poorly.
  2. Metal shavings found in the oil.
  3. Engine won’t start or fails.
  4. Check Engine Light is on.
  5. Engine rattles while idling.

Do BMW petrol engines have timing chain Problems?

BMW Petrol EngineTiming Chain Problems



A range of BMW petrol engines in cars registered between 2001 to 2015 appear to have a design problem affecting the timing chain or tensioner. The engine timing chain is very weak – it stretches over time, and ultimately snaps.

How much is a timing belt for a BMW?

The average cost for a BMW 525i timing belt replacement is between $350 and $422. Labor costs are estimated between $275 and $347 while parts are priced at $75.

How long does it take to replace a timing chain?

The timing chain replacement cost is higher than many other auto repair jobs in large part because of how long it takes to put a new timing chain into place. Oftentimes, it’s going to take a mechanic between 4 and 6 hours to complete a timing chain replacement job from start to finish.

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Is timing chain worth fixing?

A timing chain runs inside the engine, as it needs to be lubricated by the engine oil. A timing belt typically needs to be replaced between 40,000 and 100,000 miles depending on the vehicle. It’s a few hundred dollar repair. A timing chain doesn’t need to be replaced unless there is a problem with it.

Can you replace a timing chain yourself?

You may find the need to replace your timing chain at some point; however with the right tools, a service manual and some mechanical know-how, you can do it yourself. Just be aware that this is a major job and can have serious consequences for your engine if done incorrectly.

What does a bad timing chain sound like?

A bad timing chain will often emit a rattling sound for a few minutes before the engine warms up, and then will lower in intensity or dissipate altogether after it warms up.

What are common problems with BMW?

The 4 Most Common BMW Problems & Repairs

  • Engine Cooling System. A common issue many BMW owners face is their vehicle overheating.
  • Oil Leaks.
  • Steering Wheel Vibrations Under Braking.
  • Tail Lamp Assembly.

Does BMW have a timing belt or chain?

Porsche, BMW and Mercedes Benz make use of an internal timing chain. These chains are more durable and less likely to fail themselves.

Does a BMW have a timing belt or chain?

In general, Mercedes and BMWs are equipped with timing chains. Below is a non-exhaustive list of cars that can be fitted with a timing chain: Most BMWs. Most Mercedes.

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