Where is the oil cooler seal on a Mercedes?
When purchasing oil cooler seals always get the factory PURPLE color seals that are made of Viton. The older or aftermarket orange seals will leak much sooner. Unfortunately, the oil cooler is located at the bottom of the middle of the engine “V” design. It is underneath intake manifolds, EGR equipment, coolant lines and the turbocharger.
When do oil cooler seals start to leak?
If you discover some wetness at that point, you should monitor the vehicle closely for increased oil loss. Once the seals start to leak slowly the rate of leak will increase very fast.
Where is the oil leak on a 272 / 273 Mercedes?
272/273 Engines: The most likely rear engine leaks include the oil separator and the cam plugs ( 30mm and 65mm ). The oil separator is held onto the back of bank 1 (passenger side) with either 4 torx bolts or 4 external torx bolts. Remove the oil separator, replace, and clean the oil residue from the engine.
How much does it cost to replace oil cooler seals?
The oil cooler seals themselves are not very expensive (about $5 each), but there are about $90 worth of other seals for the other items that must be replaced as well so we recommend getting a full oil cooler seal kit to do the job right. Figure about $100 in parts + 10 hours of labor at shop-rate.
Why is the oil cooler seal leaking on my Mercedes ML320?
The yellow arrow points to the intake points that are covered with carbon deposits which restricts airflow into the engine. The green arrow points to the turbostand mounting. There is a lot of oil in this area and likely another source of this engine’s oil leakage. Mark: Sounds like a lot of work to get at the oil cooler.
Where is the oil cooler on a Mercedes?
The older or aftermarket orange seals will leak much sooner. Unfortunately, the oil cooler is located at the bottom of the middle of the engine “V” design. It is underneath intake manifolds, EGR equipment, coolant lines and the turbocharger. All these items must be removed before the oil cooler can be removed.
Can a diesel engine have an oil cooler leak?
The Achilles heel of this engine, unfortunately, is the oil cooler seal design. We’ll go over which vehicles are affected, the signs and symptoms plus let you know what to expect on a repair. All models that were equipped with the 3.0L V6 diesel engine, engine code OM642, can be affected by this problem.
How often do you need to replace oil cooler seals?
I am just experiencing this issue in my 2010 ML350 BT (73k miles), which theoretically has the new Viton seals. It looks like the new seals mean you only have to tear the engine down and replace them every 30-35k miles. I have been told it is going to cost between $3-4k to repair.
What kind of seal does Mercedes Benz use?
Due to the inordinate number of pre-2010 OM642 engines needing repair due to heat-related seal degradation causing oil cooler leaks, Mercedes reformulated the seals from an orange color rubber to a purple color Viton seal now used in all 2010 and later engines.
The Achilles heel of this engine, unfortunately, is the oil cooler seal design. We’ll go over which vehicles are affected, the signs and symptoms plus let you know what to expect on a repair. All models that were equipped with the 3.0L V6 diesel engine, engine code OM642, can be affected by this problem.
Is there a problem with my BlueTEC oil cooler?
I have a 2014 ML350 Bluetec with 35k miles on the odometer. MB recently changed the oil cooler (under warranty) to repair an oil leak. It’s not a good sign. Given the model year, I assume my vehicle had the new oil seal o-rings.
What should I do if my Mercedes oil cooler leaks?
Once the seals start to leak slowly the rate of leak will increase very fast. You may not initially get oil stains when parked as Mercedes models come with a fairly large undercarriage cover (aka belly pan) that can collect a significant amount of oil before it leaks over. Repair involves replacing the two seals on the oil cooler.
How to get a Mercedes Benz oil change?
We are a full service Mercedes approved independent shop. Our expert technicians use only quality OEM parts to ensure your car is restored to its former glory. Mercedes Benz requires special tools and procedures to perform an oil and filter change service, oil leak repair and much more. Give us a call at 770-837-3888
What causes soot build up in Mercedes engine?
Wrong engine oil can cause excessive soot build up. Luckily, the regeneration process can be initiated manually, using an appropriate diagnostic tool. In most cases, this will purge a clogged DPF. Mercedes, like many diesel cars, uses a DPF Exhaust Pressure Sensor to determine how much does the DPF restrict the exhaust flow.
When purchasing oil cooler seals always get the factory PURPLE color seals that are made of Viton. The older or aftermarket orange seals will leak much sooner. Unfortunately, the oil cooler is located at the bottom of the middle of the engine “V” design. It is underneath intake manifolds, EGR equipment, coolant lines and the turbocharger.
How do you change the oil on a car?
Two panel fasteners must also be removed, one by the horn in front and one way low behind the wheel. Two wires are also clipped to it, one in the front by the horn and the other along the bottom, clipped on in three places. 5) Disconnect the battery.
Where does the oil leak come from on a Chevy Cavalier?
When this seal gave way on a 2003 Chevrolet Cavalier with GM’s 2.2L Ecotec engine, the leak was huge. If it’s a big leak and it seems to be coming from the front (belt end) of the engine, the crankshaft front seal is the major culprit.
How long does it take to replace oil cooler seal?
Once those other items have been removed, physically removing the oil cooler itself and replacing the seals is very easy. Considering the amount of work that must go into reaching the oil cooler, repair times can vary widely, but generally it is accepted that 10 hours is a good starting point.