North American Motoring

Mini Cooper 2007-2013 What You Need to Know About the Timing Chain Tensioner Recall

Nothing is fool proof, and even with BMW engineering expertise behind them, the Mini Cooper does occasionally suffer from design defects. The good news is that the factory is fixing it under recall. Read on to see if you are covered.

By Brett Foote - June 29, 2016

This article applies to the Mini Cooper (2007-2013).

Problems with the timing chain tensioner in certain models of the 2nd generation Mini Cooper were all too well known among owners, but it took a lawsuit and several years before BMW/Mini decided to acknowledge and correct the problem. The models covered included the 2007 to 2010 R55 Clubman, R56 Hatch, and R57 Convertible with the S motor, owners of which had mixed success getting these components replaced under warranty. Many simply paid for the job themselves, not wanting to risk engine failure over a relatively inexpensive part. Timing chains typically last more than 100k miles in other cars, but the affected Mini models often need them changed at 20-30k miles when they start making noise. If your Mini is suffering from timing chain noises, or premature failure, keep reading and we'll cover everything you need to know to get them fixed properly.

Component Breakdown

Timing Chain Problem Backstory

In 2008, BMW released a Technical Service Bulletin (TSB) regarding premature timing chain wear and failure, but it did not issue a recall or provide compensation for those who had such issues. Instead of using a belt that needs periodic replacement like many cars do, the Mini employed a metal timing chain. Located inside the engine, a chain is purported to last the life of the vehicle with no maintenance. In reality, this design meant that a defective timing chain tensioner can quickly lead chain failure, and finally even engine failure. Because these were supposed to be maintenance-free items, they don't typically get checked for wear, and by the time they start making noise, it may be too late. Making matters worse, dealers charge upwards of $1,000 for timing chain replacement and up to $10,000 for an engine replacement.

Faulty timing tensioners can lead to issues, and ultimately complete engine failure
Figure 1. Faulty timing tensioners can lead to issues, and ultimately complete engine failure.

Symptoms of Timing Chain Failure

Simply following the scheduled maintenance on your Mini isn't enough to prevent timing chain issues, and the on-board computer doesn't monitor the condition of the timing chain. This means that problems often go unnoticed, and significant damage can occur before the owner knows there is a problem. One of the most notable symptoms is affectionately known as the "death rattle." This rattle noise comes from the passenger side of the vehicle and is more noticeable at idle, in cold weather, and at lower speeds. It typically indicates the plastic guides of the tensioner are worn, or the tensioner itself is not putting proper force on the chain. Another symptom some have reported is massive oil loss, which is caused by the timing chain tensioner "walking" out of the head, or the chain itself cracking the valve cover.

If you experience this type of oil loss or the death rattle, stop driving the car immediately and have it towed to a dealership if possible to prevent major engine damage.

Replacing the timing chain or the motor isn't cheap
Figure 2. Replacing the timing chain out of warranty isn't cheap.

What to Do If You Have Timing Chain Problems

Because of the serious damage a problem with the timing chain or tensioner can cause to your engine, taking immediate action is critical. Shut off the motor and call your local Mini dealer or AAA immediately to be towed in. Engine replacements will not be covered if you let it get that bad, but if you catch it in time, the repair should be covered in full by BMW/Mini.

Figure 3. At proper tension, this chain should not droop.

Recall Information

BMW reached a settlement in November of 2015 and is required to reimburse customers for the costs associated with the timing chain, tensioner, and engine damage caused by either. Warranties for these components has also been extended from four years or 50,000 miles to seven years or 100,000 miles. Cars covered in the recall include:

  • 2007-2009 Mini Cooper S Hardtop
  • 2008-2009 Mini Cooper S Clubman
  • 2009-2010 Mini Cooper S Convertible

If your car had a failure and you already paid out of pocket to have it fixed, contact Mini North America with a copy of the service order as well as a receipt, and you should be reimbursed. It's worth noting that 100% of these costs are covered if you have your vehicle repaired at an authorized Mini Cooper dealership, but reimbursement amounts are capped at $850 for the timing chain and $120 for the tensioner if you take your car to a third party repair shop.

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