2023 Mercedes-Benz G63 AMG Is Leaking Oil

Troubleshooting Oil Leaks in Your 2023 Mercedes-Benz G63 AMG: Causes and Solutions for a Smooth Ride

Find Repair Location
Reviewed by
Andrew Hajjar
Written by RepairPal Car Genius
Updated January 14, 2025
0%
80% chance it's the
Oil System Components
0%
20% chance it's the
Engine Gaskets
The most common reasons a 2023 Mercedes-Benz G63 AMG is leaking oil are oil system component failure and leaking engine gaskets.
  • Oil System Components: A worn or damaged oil pump or filter can lead to low oil pressure, resulting in inadequate lubrication and potential engine damage.
  • Engine Gaskets: A worn or damaged engine gasket can lead to oil or coolant leaks, resulting in engine overheating or loss of lubrication.
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 2023 Mercedes-Benz G63 AMG is leaking oil?

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.

Oil pans don't wear out or break like other parts, they generally only need to be replaced because of external damage from an accident or an improperly tightened drain plug. The main symptom you will experience is an oil leak underneath the engine of your car. The oil that leaks from a damaged oil pan will range from dark brown to dark black. If the leak is large enough or occurs for long enough the oil level will be low enough to turn the oil pressure or low oil level warning light on.

An oil leak may be noted on the ground where the vehicle is parked. However, many vehicles have plastic trays underneath the engine that may catch leaking oil and conceal the leak. In such cases, a low oil level, a burning oil smell, or even smoke from oil burning in the engine bay may be noted.

»MORE: Signs of a bad oil pan gasket

A bad oil level sensor may cause a false reading of the engine oil level. The oil level warning light may illuminate even when the oil level (checked manually) is within an acceptable range. The warning light may also come on and off intermittently if the sensor is faulty. An error code may be sent to the PCM and a check engine light may come on the dashboard as well if the sensor is bad.

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 first steps to diagnose the oil leak in a 2023 Mercedes-Benz G63 AMG?

When diagnosing an oil leak in a 2023 Mercedes-Benz G63 AMG, it's essential to adopt a systematic diagnostic approach that begins with straightforward visual inspections and progresses to more complex methods. Start by conducting a thorough visual inspection of the engine and undercarriage, looking for any obvious signs of oil leaks, such as puddles or stains. Next, check the oil levels to determine if there has been a significant loss, which could indicate a leak. Pay close attention to the oil filter and drain plug, as these components are common culprits for leaks; ensure they are secure and free from oil residue. Additionally, inspect all gaskets and seals for any signs of wear or damage, as these can often lead to leaks if not properly maintained. If the source remains elusive, consider adding UV dye to the engine oil and using a UV light to help identify the leak's exact location. For more persistent issues, a pressure test on the oil system can reveal leaks that only manifest under pressure. If these steps do not yield results, consulting a qualified mechanic or dealership is advisable for a comprehensive diagnosis and repair. By following this structured approach, you can effectively identify and address oil leaks in your G63 AMG, ensuring optimal performance and longevity of your vehicle.

What are the common causes of oil leaks in a 2023 Mercedes-Benz G63 AMG?

When dealing with oil leaks in a 2023 Mercedes-Benz G63 AMG, it's crucial to understand the common culprits that may be at play. One frequent issue is a degraded or damaged oil pan gasket, which can lead to oil pooling around the edges of the oil pan. Additionally, worn valve cover gaskets are another common source of leaks, particularly as the vehicle ages, resulting in noticeable oil seepage around the valve covers. A faulty oil filter housing gasket can also contribute to oil leaks, often presenting as oil dripping from the filter housing area. Furthermore, leaking oil cooler lines, which may develop leaks due to wear and tear, can cause oil to escape and accumulate beneath the vehicle. Lastly, various oil seals, such as camshaft and crankshaft seals, can crack or become damaged over time, leading to further oil leakage. Addressing these issues promptly is essential to prevent engine damage and maintain the vehicle's performance, making regular maintenance and inspections vital for any G63 AMG owner.

How urgent is it to address the oil leak in my 2023 Mercedes-Benz G63 AMG?

Addressing an oil leak in your 2023 Mercedes-Benz G63 AMG is not just a matter of routine maintenance; it is an urgent issue that requires immediate attention. Oil leaks can significantly reduce oil levels, leading to inadequate lubrication of vital engine components, which increases the risk of severe engine damage. Furthermore, neglecting an oil leak can result in engine overheating, a situation that can escalate quickly and leave you stranded or facing costly repairs. The safety implications are equally concerning, as leaking oil can drip onto hot engine parts, creating a fire hazard. Therefore, it is crucial to act swiftly and resolve any oil leak to maintain the performance, safety, and longevity of your vehicle. Ignoring this issue could lead to more extensive damage and higher repair costs down the line, making prompt action essential for any responsible vehicle owner.

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.