2014 BMW 650i Gran Coupe Engine Makes A Ticking Noise

Diagnosing the Causes of Ticking Noises in Your 2014 BMW 650i Gran Coupe and Recommended Solutions

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
12% chance it's the
Exhaust Leak
0%
88% chance it's
Something else
The most common reasons a 2014 BMW 650i Gran Coupe engine makes a ticking noise are low oil level or pressure, an issue with the ignition system, or an exhaust leak.
  • Exhaust Leak: A damaged or corroded exhaust system component can create an exhaust leak, resulting in increased noise and potential loss of engine power.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2014 BMW 650i Gran Coupe engine makes a ticking noise?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

If the drive belt idler pulley fails, there will be a very audible chirping noise from the front of the engine. This is because the idler pulley bearing is no longer smooth, and rotating causes metal to grind at high speeds. If it is not changed immediately, there is a chance it will become dislodged, or allow the drive belt to slip off. If the belt falls off, the accessory that it drives will no longer function. For instance, if the alternator belt idler pulley fails, the alternator may stop functioning. Also if the pulley begins to wobble, allowing slack in the belt, it will make an extremely loud squeaking or screeching noise, especially on cold starts. This is the belt slipping on the crankshaft pulley, and will require belt replacement once the idler pulley is replaced.

If the drive belt tensioner fails, there will be a very audible chirping, grinding, or rattling noise from the front of the engine. This is because the tensioner pulley bearing is no longer smooth, and rotating causes metal to grind at high speeds. If it is not changed immediately, there is a chance it will become dislodged, or allow the drive belt to lose tension, or break. If the belt falls off, the accessory that it drives will no longer function. Also, if the tensioner spring fails, allowing slack in the belt, it may make an extremely loud squeaking or screeching noise combined with a rattle as the tensioner bounces back and forth under load. The squealing noise is the belt slipping on the crankshaft pulley, and will require belt replacement once the belt tensioner is replaced.

An engine leaking oil does not always make a puddle on the ground. A burning smell may be noticed from the front of the vehicle after driving. This is because engine oil leaks may fall onto hot engine components, especially the exhaust manifold, and burn off before making it to the ground. This poses a risk to the engine because the leak going unnoticed may deplete the engine oil reserve, and lead to an oil starvation issue. Some engine oil leaks only occur while the engine is running, so the leak may be larger than the small spot on the ground makes it seem.

Noises can be accompanied by many annoying or worrisome sensations. Consider the noise of grinding brakes, the noise sounds much like the brake pedal and steering wheel feel. This is important, as random noises can be difficult to replicate without knowing when the sound occurs, what must be done to make the sound, and what sound it is. Any professional technician can replicate and diagnose most noises, but to ensure the vehicle is more quickly diagnosed, make sure you tell your technician these three pieces of information.

The engine oil pressure warning light will come on if the engine oil pressure is low, or if the oil pressure sensor is faulty. In either case, engine power may be reduced significantly. The check engine light may also illuminate, and an on-board diagnostic (OBD) trouble code will be stored in the vehicle's computer.

What are the common causes of a ticking noise in the engine of a 2014 BMW 650i Gran Coupe?

When diagnosing a ticking noise in the engine of your 2014 BMW 650i Gran Coupe, it's crucial to consider several common problems that could be at play. One of the primary culprits is low oil level or pressure, which can lead to insufficient lubrication of engine components, resulting in a ticking sound. Additionally, faulty valvetrain components, particularly a malfunctioning hydraulic lifter, can create similar noises as they fail to operate smoothly. Exhaust leaks, including those from a damaged exhaust manifold gasket, may also contribute to the ticking, as escaping gases can produce a distinct sound. It's important to ensure that you are using the correct type and viscosity of oil, as contaminated or inappropriate oil can exacerbate engine noise. Lastly, be mindful of environmental factors; cold weather can temporarily cause ticking sounds during startup, which typically resolves as the engine warms up. Addressing these issues promptly is essential to maintain the health of your engine and prevent further damage.

How urgent is it to address the ticking noise in the engine of a 2014 BMW 650i Gran Coupe?

When it comes to addressing a ticking noise in the engine of your 2014 BMW 650i Gran Coupe, understanding the urgency is crucial to prevent potential damage and ensure safety. Ignoring this symptom can lead to severe consequences, such as engine failure or costly repairs. The ticking noise may stem from various issues, including low oil pressure or faulty valvetrain components, which can escalate if not diagnosed and treated promptly. A thorough diagnostic assessment is essential; it allows you to pinpoint the exact cause of the noise and gauge its severity. If the noise persists or worsens during driving, it signals a more urgent need for attention, as continued operation under these conditions could exacerbate the problem. Therefore, while some ticking noises may be benign, it is advisable to consult a mechanic to evaluate the situation. This proactive approach not only safeguards your vehicle's performance but also enhances your safety on the road.

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