2022 BMW 740i Engine Makes A Ticking Noise

Common Causes of Ticking Noises in Your 2022 BMW 740i Engine and How to Address Them

Find Repair Location
Reviewed by
Andrew Hajjar
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 2022 BMW 740i 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 exhaust manifold or a loose connection in the exhaust system can cause 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 2022 BMW 740i 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.

What are the potential causes of a ticking noise in a 2022 BMW 740i engine, and how should I diagnose them?

When diagnosing a ticking noise in your 2022 BMW 740i engine, it's essential to adopt a systematic approach that begins with the simplest potential causes before moving on to more complex issues. Start by checking the engine oil level, as low oil can lead to inadequate lubrication, resulting in noise from engine components. If the oil level is sufficient, inspect the valve lifters for wear, as these can also contribute to ticking sounds. Next, examine the fuel injectors, as faulty injectors may produce similar noises. If these components are functioning correctly, turn your attention to the timing chain tensioner, which can wear out and cause ticking if not properly maintained. Additionally, check for any exhaust leaks, as these can sometimes mimic engine noise. If you are unable to identify the source of the ticking after these checks, it may be time to consult a professional mechanic or a BMW dealership for a thorough diagnosis. By following this structured diagnostic approach, you can effectively narrow down the potential causes of the ticking noise and take appropriate action to resolve the issue.

What are the common causes of a ticking noise in the engine of a 2022 BMW 740i?

When you hear a ticking noise coming from the engine of your 2022 BMW 740i, it’s crucial to understand the common problems that could be at play. One of the primary culprits is low engine oil, which can lead to increased friction among engine components, resulting in that unsettling ticking sound. Additionally, worn valve lifters may also contribute to this noise, as they can fail to operate smoothly within the engine. Another potential issue could be faulty fuel injectors; if they are not functioning properly, they can create a ticking sound during operation. An exhaust leak is another possibility, where escaping gases through cracks or openings can produce a similar noise. Lastly, timing chain issues, such as wear on the tensioner or misalignment, can also manifest as a ticking sound. Addressing these issues promptly is essential to prevent further damage to your engine, and if you find the diagnosis challenging, seeking help from a qualified mechanic is always a wise choice.

How urgent is it to address the ticking noise in the engine of a 2022 BMW 740i?

When it comes to the ticking noise in the engine of a 2022 BMW 740i, urgency is paramount. Ignoring this symptom can lead to severe repercussions, including engine failure and costly repairs that could have been avoided with early intervention. The ticking sound may indicate underlying problems such as low oil levels, worn components, or valve train issues, all of which can escalate if not addressed swiftly. Moreover, unresolved engine issues can compromise vehicle performance and safety, making it crucial for DIY enthusiasts to act quickly. While some may consider minor noises as inconsequential, the reality is that timely diagnosis and repair can save both time and money in the long run. Therefore, if you notice a ticking noise, it is advisable to investigate the cause immediately, whether through a professional inspection or by checking oil levels and components yourself, to ensure your BMW remains reliable and safe on the road.

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.