2010 GL350 Oil cooler seal leaks
09-14-2016, 05:01 PM
#1
2010 GL350 Oil cooler seal leaks
Has anyond tried the commercially available stop leak sealants like Bar's? Indy quoted $1700. The oil cooler seal was replaced once at 40k and now leaks again at 110k.
Last edited by rich4368; 09-14-2016 at 05:04 PM.
09-14-2016, 05:11 PM
#2
do not use any rubber/ viton swelling additives. if your seals at 40k were the updated seals (most likely) it should not leak again
before concluding it is the seals - check the turbo intake seals (the two orange seals) for leaks. usually they are the ones that leak and appear just like the oil cooler seals leak.
remove intake tract and check for oil right under the seal. if plastic there is wet - i just saved you $1700.
before concluding it is the seals - check the turbo intake seals (the two orange seals) for leaks. usually they are the ones that leak and appear just like the oil cooler seals leak.
remove intake tract and check for oil right under the seal. if plastic there is wet - i just saved you $1700.
09-14-2016, 05:25 PM
#3
Worth a try. I replaced the larger one last time I replaced the fuel filter. The smaller one on the side has never fitted completely, its hanging out about 5mm after I put back the air intake manifold...
09-14-2016, 06:43 PM
#4
The updated side seal can be driven all the way inside the pipe. It is a somewhat a tight fit.
Check the big seal too. It is very easy to install it crooked and then pinch and destroy it by misaligning the plastic intake pipe. It is just a bad design. You want to tilt the air filters outwards, install the y-pipe plastic intake so it fits nicely on the turbo and doesn't pinch the seal, tighten and then pull inward the air filters while making sure the rubber sleeves are all the way in- especially on the bottom ... make sure also they are not pinched...
Check the big seal too. It is very easy to install it crooked and then pinch and destroy it by misaligning the plastic intake pipe. It is just a bad design. You want to tilt the air filters outwards, install the y-pipe plastic intake so it fits nicely on the turbo and doesn't pinch the seal, tighten and then pull inward the air filters while making sure the rubber sleeves are all the way in- especially on the bottom ... make sure also they are not pinched...
Last edited by alx; 09-14-2016 at 06:48 PM.
09-15-2016, 01:42 PM
#6
Senior Member
do not use any rubber/ viton swelling additives. if your seals at 40k were the updated seals (most likely) it should not leak again
before concluding it is the seals - check the turbo intake seals (the two orange seals) for leaks. usually they are the ones that leak and appear just like the oil cooler seals leak.
remove intake tract and check for oil right under the seal. if plastic there is wet - i just saved you $1700.
before concluding it is the seals - check the turbo intake seals (the two orange seals) for leaks. usually they are the ones that leak and appear just like the oil cooler seals leak.
remove intake tract and check for oil right under the seal. if plastic there is wet - i just saved you $1700.
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10-08-2016, 07:47 PM
#8
Alx, I finally got the time to replace the fuel filter, also replaced both orange seals. The big orange seal surrounding was dry so the leak must not from there. It is now leaking pretty bad, every tank fill up needs a quart. I took a peek under looked like leaks coming from torque converter access plug area. Do u think is oil cooler seal leak again? It was replaced around 40k as I mentioned earlier.
Last edited by rich4368; 10-08-2016 at 08:28 PM.
10-08-2016, 11:41 PM
#9
If the area below the big orange seal is dry - it is probably the oil cooler seals. I wonder if they put the new viton seals when they did it at 40k miles. I have never seen them leak...
10-09-2016, 07:05 AM
#10
The oil cooler must be replaced as well. If you use a steel straight edge on the bottom side, you will notice the non-planar surface.
So, no matter the color of the gasket, this will leak again soon.
10-09-2016, 05:59 PM
#11
The give in the seals is sufficient to compensate for the warped oil cooler. It is failure of material and amount of give in the seal. New seals are different material and thicker. Done right they should not fail in the practical lifespan of the vehicle.
10-10-2016, 04:26 AM
#12
Maybe it should not failed, but on our workshop ( this engine is very common here..) we did this operation regular from 5 year.
Till 2 years ago we too, exchange only the seals, but we did under guarantee so many...
Of course, if the 'light test' with steal straight edge is OK, maybe the oil cooler will last as vehicle.
The Oil cooler is not expensive.
Till 2 years ago we too, exchange only the seals, but we did under guarantee so many...
Of course, if the 'light test' with steal straight edge is OK, maybe the oil cooler will last as vehicle.
The Oil cooler is not expensive.
Last edited by trigital; 10-10-2016 at 04:29 AM.
