Mercedes-Benz Tech Tip: Implausible Oil Level Messages

Mercedes-Benz Tech Tip: Implausible Oil Level Messages

You may encounter instances on any of the subject models where the engine oil level is OK, but the instrument cluster is displaying any one of the following three messages: oil level below minimum; oil level above maximum; or engine oil level - visit workshop.

You may encounter instances on any of the subject models where the engine oil level is OK, but the instrument cluster is displaying any one of the following three messages:

• Oil level below minimum;

• Oil level above maximum; or

• Engine oil level — visit workshop.

Affected Vehicles:
Models 129, 170, 202, 208, 210, 215 and 220 with M112, 113 or 137 engines.

Note: To avoid unnecessary replacements, perform the following steps before replacing the oil level sensor:

Service Procedure:
1. Check if the engine has the appropriate oil dipstick. Correct the oil dipstick if necessary. Disregard this step if the engine is not equipped with oil dipstick (i.e. 137 engine).

2. Check if the oil level is correct using the proper oil dipstick. Use DAS to check the oil level in engines without an oil dipstick. Correct the oil level if necessary.

3. Check if the correct oil data is stored in the instrument cluster.

Procedure for checking and correcting oil data:

a. Hook up the DAS.

b. Select vehicle mode.

c. Select instrument cluster.

If the oil data is incorrect, change the oil data in the instrument cluster by performing steps d-g.

d. Select control unit settings.

e. Select coding or variant coding.

f. Select engine or engine variant.

g. Save data.

4. Check for DTCs in the engine control unit. If an oil level sensor fault code has been stored, perform the following steps.

a. If three fault codes (P2039, P2040 and P2041) are stored in the engine control unit:

• The oil level sensor connector is plugged incorrectly or partially plugged. Correct the connection.

• The wiring harness is damaged (short circuit); replace it.

• The oil level sensor is defective; replace it.

b. If any one or two of the above-mentioned fault codes are stored in the engine control unit, replace the oil level sensor.

5. Check the oil level sensor (A004 153 53 28) for the production date. For oil level sensors with production dates up to and including 00W51, implausible over-filling warnings can occur when water temperature reaches 60 to 70° C. Oil level sensors with production dates of 00W52 and after are OK.

Note: If you encounter instances of leaky oil level sensors or oil pans on any of the subject models, check for leaks between the oil sensor and oil pan. Replace the seal, P/N A023 997 43 48, if it’s found to be damaged. Lightly oil the seal when installing it. Check the oil pan holes for rough or sharp edges. Remove them if any are found; or, if necessary, replace the oil pan.

For additional tech tips, visit www.identifix.com.

Technical service bulletin courtesy of IDENTIFIX.

You May Also Like

Myers Tire Supply Introduces MTS Xpresstm

The innovative solution to consolidate purchases and control inventory costs.

Myers Tire Supply has announced the launch of MTS Xpress, a proprietary platform to help customers gain control while consolidating their purchases and streamlining their inventories. 

MTS Xpress from Myers Tire Supply is designed to help customers regain control of their inventory and lower their operating costs.  It is a proprietary inventory management solution connecting the customers’ needs to Myers’ inventory with the help of a downloadable mobile app.  With MTS Xpress, a Myers Tire Supply representative or any authorized customer employee can order an unlimited number of consumables, making sure the right products are on their shelves at the right time.  MTS Xpress will help our customers consolidate their suppliers, reduce purchasing costs by streamlining the entire acquisition process and gain control of their inventory.

Experiencing What the Tool Industry Has to Offer

ETI held its annual ToolTech conference April 17-19 at the Hyatt Regency Tamaya Resort in Santa Ana Pueblo, New Mexico.

Sandia Mountains
LIQUI MOLY Develops Liquid Thermal Manager for EV Batteries

The automotive chemical specialist is expanding its range for all-electric vehicles with Battery Coolant EV 200.

May 2023 Vehicle Care RockStar: Johnny Weber

Johnny Weber exudes confidence in his abilities to lead the band through proficiency over pageantry.

Variable Valve Timing Systems

Variable valve timing systems allow today’s engines to maximize performance and drivability.

Other Posts

Continental Tire Upgrades Test Tracks for EVs

Continental expanded its EV charging infrastructure at three company-owned test sites in Sweden, Germany and the U.S.

Streamlight Names E.A. Langenfeld & Associates 2022 Automotive Sales Rep Agency of the Year

The company received the award yet again in recognition for outstanding national sales achievement.

MAHLE and Midtronics Join Forces for Battery Service 

The goal of the cooperation: holistic battery diagnostics and maintenance from a single source in a growing future market.

Mitchell Announces Data Licensing Agreement with Rivian

Agreement reaffirms Mitchell’s commitment to proper and safe repair as electric vehicle adoption surges.