2014 BMW 750i Engine Makes A Ticking Noise

Common Causes of Ticking Noises in Your 2014 BMW 750i Engine and How to Address Them

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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 750i 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 750i 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 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.

How urgent is it to address the ticking noise in my 2014 BMW 750i engine?

When it comes to the ticking noise in your 2014 BMW 750i engine, understanding the urgency of the situation is crucial for maintaining your vehicle's health. While some ticking sounds may not indicate immediate danger, they can signal underlying issues that, if left unchecked, could lead to significant engine damage or safety risks. For instance, low oil levels or pressure can cause severe harm to engine components, making it essential to check your oil regularly and top it off as needed. Additionally, other potential culprits like ignition system problems or exhaust leaks should not be ignored, as they can exacerbate the ticking noise and lead to costly repairs. Regular maintenance and prompt diagnosis are key to preventing further damage, so if the noise persists or worsens, it’s wise to conduct a thorough inspection or consult a professional. By staying proactive, you can ensure the longevity of your BMW engine and avoid more serious issues down the road.

What are the common causes of a ticking noise in the engine of a 2014 BMW 750i?

When dealing with a ticking noise in the engine of a 2014 BMW 750i, it's crucial to understand the various common problems that could be at play. One of the first things to check is the oil level; low oil can lead to insufficient lubrication, resulting in ticking sounds. If the oil level is adequate, the next step is to inspect the valvetrain components, as worn or faulty parts can create similar noises. Additionally, exhaust leaks or issues with spark plugs may contribute to the ticking sound, so these should be examined as well. More serious concerns, such as rod knock or piston slap, can also manifest as ticking noises, indicating potential engine damage that requires immediate attention. Environmental factors, particularly cold weather, can cause temporary ticking during startup, so consider the conditions under which the noise occurs. Lastly, if the engine cooling fan continues to run after the engine is turned off, it may produce noise that could be mistaken for engine ticking. By systematically checking these areas, DIYers can effectively diagnose and address the ticking noise in their BMW 750i.

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2014 BMW 750i Engine Ticking Noise: Causes & Repairs