Dear All
I did a full service over the weekend on my wife's 2004 TD4, I did everything including the BMW crankcase breather oil separator conversion, rear final drive oil and the gearbox oil.
On completion, I took the car for a test drive: nice smooth gear change, going up through the box as it should but there is a noticeable whirring/humming noise which increase with speed/revs. Its not really loud but if you are listening for it, you can hear it. It definitely was not there before.
I followed all the instructions in the manual and various threads that have covered the topic. The only change I did was I used Carlube ATF-U fully synthetic transmission fluid instead of the Texaco. The reason for this was not price it was the fact I could not get hold of the Texaco stuff, even the local dealer said they only buy it in 25 ltr drums???
I am presuming the humming will be due to changing the gearbox oil.
Can anyone advise, is this normal when you have new oil installed in the Jatco box I would of thought it should of made it quitter if anything.
The level has been re-checked again and it is correct (steady trickle).
I am now scared to drive this as I do not want to blow the box especially after reading all the horror stories other members have listed.
Is it a case of find the correct oil and start again or could I have done something wrong.
Many thanks
I did a full service over the weekend on my wife's 2004 TD4, I did everything including the BMW crankcase breather oil separator conversion, rear final drive oil and the gearbox oil.
On completion, I took the car for a test drive: nice smooth gear change, going up through the box as it should but there is a noticeable whirring/humming noise which increase with speed/revs. Its not really loud but if you are listening for it, you can hear it. It definitely was not there before.
I followed all the instructions in the manual and various threads that have covered the topic. The only change I did was I used Carlube ATF-U fully synthetic transmission fluid instead of the Texaco. The reason for this was not price it was the fact I could not get hold of the Texaco stuff, even the local dealer said they only buy it in 25 ltr drums???
I am presuming the humming will be due to changing the gearbox oil.
Can anyone advise, is this normal when you have new oil installed in the Jatco box I would of thought it should of made it quitter if anything.
The level has been re-checked again and it is correct (steady trickle).
I am now scared to drive this as I do not want to blow the box especially after reading all the horror stories other members have listed.
Is it a case of find the correct oil and start again or could I have done something wrong.
Many thanks