2014 BMW 750Li Engine Makes A Ticking Noise

Diagnosing the Causes of Ticking Noises in Your 2014 BMW 750Li Engine and Recommended Solutions

Find Repair Location
Reviewed by
Bo Fader
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 750Li 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 750Li 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 the engine of a 2014 BMW 750Li?

Addressing the ticking noise in the engine of a 2014 BMW 750Li is of utmost importance due to the potential risks associated with ignoring such symptoms. While some noises may seem minor, they can often be indicative of underlying issues that, if left unchecked, could escalate into significant engine damage or even pose safety hazards while driving. Components such as pushrods, valves, or mufflers may be at fault, and a proper diagnosis from a qualified mechanic is essential to pinpoint the exact cause. Delaying action not only risks further damage to the engine but could also lead to costly repairs down the line. Therefore, it is crucial for DIY enthusiasts to recognize the urgency of this situation and take immediate steps to investigate and resolve the ticking noise to ensure the vehicle's safety and reliability.

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

When diagnosing a ticking noise in the engine of a 2014 BMW 750Li, 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. Regularly checking and maintaining the oil level can help prevent this issue. Additionally, problems with the ignition system, such as faulty spark plugs or ignition coils, can also manifest as ticking noises, indicating that the engine is not firing correctly. Another potential source of the ticking sound could be an exhaust leak, which can create a distinct ticking noise as exhaust gases escape from the system. Lastly, lifter noise, often caused by hydraulic valve lifter issues, can contribute to the ticking sound, signaling the need for further inspection and possible repair. Addressing these problems promptly is essential to avoid more significant engine damage and ensure the longevity of your BMW 750Li.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.