Oil leak, rear crankshaft seal
06-23-2023 | 04:01 AM
#1
Thread Starter
Newbie
Joined: Jun 2023
Posts: 2
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2010 ML350 Bluetec
Oil leak, rear crankshaft seal
Hi all.
My 2010 ML350 Bluetec has a leak at the back of the engine. My tech says it's the rear crankshaft seal. I'm a bit skeptical because I haven't seen much complaints about this seal leaking. Could it be a misdiagnosis? Could it be the oil cooler?
I bought the car used with 180k miles on the engine. I now have around 195k on it. I lose around a quart of oil in a month or month and half. Any suggestions are appreciated. Thanks.
My 2010 ML350 Bluetec has a leak at the back of the engine. My tech says it's the rear crankshaft seal. I'm a bit skeptical because I haven't seen much complaints about this seal leaking. Could it be a misdiagnosis? Could it be the oil cooler?
I bought the car used with 180k miles on the engine. I now have around 195k on it. I lose around a quart of oil in a month or month and half. Any suggestions are appreciated. Thanks.
06-23-2023 | 07:57 AM
#2
Member
Joined: Mar 2023
Posts: 105
Likes: 14
GL320 X164 OM642 722.902
Hi all.
My 2010 ML350 Bluetec has a leak at the back of the engine. My tech says it's the rear crankshaft seal. I'm a bit skeptical because I haven't seen much complaints about this seal leaking. Could it be a misdiagnosis? Could it be the oil cooler?
I bought the car used with 180k miles on the engine. I now have around 195k on it. I lose around a quart of oil in a month or month and half. Any suggestions are appreciated. Thanks.
My 2010 ML350 Bluetec has a leak at the back of the engine. My tech says it's the rear crankshaft seal. I'm a bit skeptical because I haven't seen much complaints about this seal leaking. Could it be a misdiagnosis? Could it be the oil cooler?
I bought the car used with 180k miles on the engine. I now have around 195k on it. I lose around a quart of oil in a month or month and half. Any suggestions are appreciated. Thanks.
06-24-2023 | 04:01 AM
#3
Super Member
Joined: Jun 2014
Posts: 752
Likes: 312
From: Melbourne, Australia
2010 ML550 VIN WDC1641722A564750, 2010 B180
Your instinct is correct. Chances are its the oil cooler seal that's leaking rather than the rear main seal, which as you said, there isn't alot of evidence for. Make sure your talking to an experienced MB mechanic. Indies are best. If the fella you spoke to didnt mention the oil cooler seals, thats a red flag given how prevalent this issue is for the diesels.
