gearbox oil leak - VW 1.9PD Tdi 5 speed
Discussion
Afternoon all,
I'd appreciate any help pin pointing a suspect leak on the 5 speed manual gearbox (code JDA) on my 2006 VW Polo 1.9tdi.
I was going to do the cambelt yesterday, but found the engine undertray wet with oil. The underside of the gearbox casing was black with oil and I initially suspected engine oil but could not find any trace of a leak on the engine. I wiped everything down and took it for a 5min drive and a fresh trace of oil formed on the bulkhead side of the gearbox case. I'm 99.9% sure it's gearbox oil as it has that "stink" to it.
Today I checked the gearbox oil by removing the horizontal filler plug. I managed to add approx 250ml before it started to come out the plug hole, so I assume that's how much has leaked in an undetermined amount of time/miles.
I removed the air filter housing etc to get a better look at the "top" of the gearbox as that's apparently where the leak is originating. I cleaned everything up and took it for another 5min drive. Fresh oil formed at the back/underside of gearbox casing again, its tracking down from higher up on the box and I THINK it's somewhere around/near the linkage mechanism but I cannot pinpoint where.
Does anyone have any suggestions of where this could be coming from? I'm guessing a seal but I can't really identify anything? I'm really struggling to see where its originating.
Some pics:
Many thanks
I'd appreciate any help pin pointing a suspect leak on the 5 speed manual gearbox (code JDA) on my 2006 VW Polo 1.9tdi.
I was going to do the cambelt yesterday, but found the engine undertray wet with oil. The underside of the gearbox casing was black with oil and I initially suspected engine oil but could not find any trace of a leak on the engine. I wiped everything down and took it for a 5min drive and a fresh trace of oil formed on the bulkhead side of the gearbox case. I'm 99.9% sure it's gearbox oil as it has that "stink" to it.
Today I checked the gearbox oil by removing the horizontal filler plug. I managed to add approx 250ml before it started to come out the plug hole, so I assume that's how much has leaked in an undetermined amount of time/miles.
I removed the air filter housing etc to get a better look at the "top" of the gearbox as that's apparently where the leak is originating. I cleaned everything up and took it for another 5min drive. Fresh oil formed at the back/underside of gearbox casing again, its tracking down from higher up on the box and I THINK it's somewhere around/near the linkage mechanism but I cannot pinpoint where.
Does anyone have any suggestions of where this could be coming from? I'm guessing a seal but I can't really identify anything? I'm really struggling to see where its originating.
Some pics:
Many thanks
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