Mercedes-Benz R320 Engine oil is black and gritty Inspection at your home or office.

Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM.

Estimate price near me

Service Location

Customer Ratings

(5,730)

How A Diagnostic Works

Instantly book a certified mobile mechanic to come to you

Mechanic diagnoses the problem and quotes necessary repairs

Your vehicle is ready to go

Fair, upfront & transparent pricing for all services

Our certified mobile mechanics can come to you now.

Customer Ratings

(5,730)

Engine oil is black and gritty Inspection Service

How much does a Engine oil is black and gritty Inspection cost?

On average, the cost for a Mercedes-Benz R320 Engine oil is black and gritty Inspection is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2008 Mercedes-Benz R320V6-3.0L Turbo DieselService typeEngine oil is black and gritty InspectionEstimate$114.99Shop/Dealer Price$132.49 - $145.62
2009 Mercedes-Benz R320V6-3.0L Turbo DieselService typeEngine oil is black and gritty InspectionEstimate$94.99Shop/Dealer Price$112.52 - $125.67
2007 Mercedes-Benz R320V6-3.0L Turbo DieselService typeEngine oil is black and gritty InspectionEstimate$94.99Shop/Dealer Price$112.52 - $125.67
Show example Mercedes-Benz R320 Engine oil is black and gritty Inspection prices

Car engines need oil to operate smoothly and efficiently. Engine oil helps lubricate the dozens of moving and interacting parts, helps prevent rust and corrosion as well as aiding in removing the heat that an engine generates. Modern oil also helps keep an engine clean by removing sludge and build-up. An engine without oil simply will not function.

Brand new engine oil is a lovely amber color but over time it will turn black and in some cases will get gritty. Fortunately, this is usually not a problem, it is simply a result of the oil doing the job it was designed to do.

How this system works:

The primary function of engine oil is to lubricate the various moving parts of an engine. The constant contact between these moving parts generates both heat and wear and tear. Engine oil keeps friction to a minimum and dissipates the heat.

Engine oil is stored in the oil pan. The pan holds between 4 and 6 quarts of oil. When an engine is started, an oil pump sucks the oil from the pan through the pickup tube. The oil then travels to the oil filter, which removes any dirt and debris that has accumulated in it and then sends the oil into the engine via spurt holes. The oil moves through the engine and eventually makes it way back to the oil pan where the process starts again.

Common reasons for this to happen:

  • Normal Wear and Tear: Regardless of how often oil is changed, eventually it becomes black and slightly gritty. This simply means it is doing its job. Modern detergent engine oils which have detergent additives are designed to disperse the tiny particles or engine sludge and hold them in suspension in the oil so they do not build up on engine parts.

This will make the oil darker in color, and slightly gritty but it’s better for the build up to be trapped in the oil then building up on the vehicles engine parts. Oil can only hold so much sludge and eventually it will need to be replaced.

  • Dirty Oil Filter: An oil filter’s primary function is to filter out contaminants in the oil that it picks up while cycling through the engine. Over time an oil filter will become full and will need to be replaced. If it is unable to filter the oil the contaminants will remain in the oil and possibly damage the engine.

  • Overdue for an Oil Change: Oil needs to be changed on a regular basis. While oil turning black and getting slightly gritty is normal, extremely black oil that develops globs on the dipstick needs to be changed immediately. The interval between oil changes will vary depending on the type of oil being used but it is a good idea to follow the manufacturers recommendations.

While 3,000 miles used to be the recommendation, most modern oils, especially synthetics can go between 7,000-10,000 before an oil change is needed.

  • Oil Light Comes On: In most vehicles, if the Oil Warning light comes on, it is reason for immediate concern. In most cases this will indicate a low oil pressure situation, which could be the result of a failing oil pump or a leak. This can do severe damage to the engine. The vehicle should be inspected and repaired immediately.

  • Oil Level is Dropping: If the vehicle is consistently low on oil or the level is dropping sharply over a short period of time, there is probably an oil leak somewhere in the system. An oil leak can lead to a dangerously low amount of oil in the car and should be repaired immediately.

What to expect:

A top-rated mobile mechanic will come to your home or office to determine the source and cause of the Oil is Black and Gritty issue, ​and will then provide a detailed inspection report that includes the scope and cost of the necessary repairs.

How it's done:

The mechanic look for normal wear and tear of the engine oil, along with the oil filter, oil level and other indications that will help determine if any problem exists or if additional procedures are required in order to provide you with an accurate diagnosis.

How important is this service?

In most cases black and gritty engine oil is normal. Engine oil should be changed on a regular basis according to the manufacturers recommendations. Going too long between oil changes can affect the performance of the engine and lead to expensive repairs.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(5,730)

Rating Summary
5,332
192
54
29
123
5,332
192
54
29
123

Tung

16 years of experience
310 reviews
Tung
16 years of experience
Mercedes-Benz R320 V6-3.0L Turbo Diesel - Exhaust Gas Recirculation (EGR) Tube - Marietta, Georgia
Tung worked hard and got the job done! Highly recommended.

Chris

16 years of experience
338 reviews
Chris
16 years of experience
Mercedes-Benz R320 V6-3.0L Turbo Diesel - Serpentine/Drive Belt - Spring Valley, California
Friendly

Ben

41 years of experience
1458 reviews
Ben
41 years of experience
Mercedes-Benz R320 V6-3.0L Turbo Diesel - Oil Change - Katy, Texas

Brian

23 years of experience
696 reviews
Brian
23 years of experience
Mercedes-Benz CLS500 V8-5.0L - Battery Light is on - Fernandina Beach, Florida
Brian is very professional and performed first class work on my vehicle. I will use him whenever I need automotive repairs. Super job!

Excellent Rating

(5,730)

Rating Summary
5,332
192
54
29
123
5,332
192
54
29
123
Number of Mercedes-Benz services completed
63030+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

How to Buy a Car With a Lien on It
If you are trying to buy a vehicle and find out that there is a current lien on it, the process becomes more complicated. With a lien on the title, you may not be able to: Transfer the title into...
The Guide to Legal Car Modifications in South Carolina
ARENA Creative / Shutterstock.com Those who live in South Carolina and those who are planning to do so need to understand the laws throughout the state. If you have a modified car or truck, the following laws...
10 Best Car Cell Phone Holders and Mounts
Cell phone holders and phone stands for car dashboards help you safely drive hands-free. Car phone mounts for iPhone and Samsung range from $20-50.

Is there a way to stop all of my paint from chipping off?

There have been many owners of all different car lines and manufactures with this same complaint of paint chipping and peeling conditions. I have not found anything specific to your manufacturer for a fix to your chipping issue. My suggestion...

External leak and car losing coolant

Hello! If there was a loud ticking noise you may have some internal engine damage. But I wouldn't go replacing the lifters just yet. I would recommend checking what is leaking (https://www.yourmechanic.com/article/how-to-diagnose-a-fluid-leak-by-mark-vallet) first. If you're doing the upper gasket it...

All warnings lamps are shawn in dashboard, and the gauges the acceleration and rpm are on 0 , also

It sounds like you may have a dashboard integration unit failure, or a fault within the electrical control unit (ECU) (https://www.yourmechanic.com/article/what-is-a-vehicle-s-electrical-control-unit). It's also possible that the instrument cluster itself is faulty. Have the vehicle scanned for diagnostic trouble codes (DTCs)...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (844) 997-3624 · hi@yourmechanic.com