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View Full Version : Snap bolt = new Turbo



Mungus
27th December 2017, 01:41 PM
Dealer was replacing engine mounts in an effort to try eliminate a small vibration I feel through the steering wheel at 1800 & 3600rpm. To do this they have to disconnect the exhaust. While removing the exhaust they managed to snap a bolt, drill it out to big and couldn't get a bolt back in. Local engine builder brought in to see if anything could be done. End result is a new primary turbo being installed.

FYI. The engine mounts are vacuum operated. A separate circuit to the brake system.

DiscoJeffster
27th December 2017, 02:23 PM
FYI. The engine mounts are vacuum operated. A separate circuit to the brake system.

I was looking at them the other day thinking what magic is that in regards to the engine mounts. Another thing to go wrong lol.

justinc
27th December 2017, 02:46 PM
Active engine mounts have been around for a fair time in lr products. The l322 td6 has them and if there are any leaks etc you fairly well know about it. It draws vacuum from the reservoir that the vnt operation is slso fed from so sny big vac leals can cause poor engine performance too.

Jc

Mungus
18th January 2018, 02:02 PM
So the body was removed, primary turbo replaced, then during the test drives they heard a whistle. As initially suspected the top hose was found to be not seated properly so re-seated the hose and test drove again, but whistle still remains. They now believe the EGR to be at fault although no fault codes. So, body off again to investigate and rectify. Already been a month without my Disco. :Thump:

BobD
18th January 2018, 03:25 PM
I hope you are not paying for the second body off. They can replace or remove the EGR's with the body on and once the EGR's are removed the turbos are accessible. That is how they changed both of my turbos without removing the body.

Mungus
18th January 2018, 03:34 PM
Not paying for any of it Bob. All an insurance claim on their part. I have heard this can be done without body off, but I guess they have to follow the text book as vehicle is still in warranty.

BobD
18th January 2018, 05:59 PM
Are you using the dealer in Darwin?

I hope you have better luck with them than I did. They did not even know that there is a tube on the 3.0l to suck out the oil and told me they couldn't do the oil change that way because the 3.0l doesn't have a dip stick. This was after I told them not to touch the drain plugs because the thread was stripped and we had made it unusable when it was repaired. They ended up using the second drain plug instead because they couldn't suck out the oil without a dipstick.

They also damaged a new pollen filter by not fitting it in the correct way. I only found out when I put in a new filter when I got home and found it installed incorrectly. My car now has dust in it when it has never had dust after tens of thousands of km of rough dirt roads over the last five years.

Anyway, good luck and I'm glad everything is at their cost.

Mungus
21st January 2018, 10:30 AM
Are you using the dealer in Darwin?

I hope you have better luck with them than I did. They did not even know that there is a tube on the 3.0l to suck out the oil and told me they couldn't do the oil change that way because the 3.0l doesn't have a dip stick. This was after I told them not to touch the drain plugs because the thread was stripped and we had made it unusable when it was repaired. They ended up using the second drain plug instead because they couldn't suck out the oil without a dipstick...

I understand your frustration Bob; but in support of them, they are a dealership workshop and would only be trained in processes as per the LR Workshop manual instructions. In saying that, they now realise that the body can come off without removing the bull-bar. I did tell them this before the first time, but they insisted on following LR procedures, just in case anything went wrong. Second time = no bull-bar removed. A quick mention about your scenario (no names mentioned, just the fact I knew someone who wanted a different method followed to complete a partial oil change and there lack of alternate methodology) and the service manager remembered your case and acknowledges now that that is how they do Mercedes oil changes. I suppose we all live and learn. The pollen filter = no excuse, but i hope you told them about it!

Mungus
21st January 2018, 10:40 AM
Body was removed for the second time on Friday. Smoke test revealed that the source of the leak was on the secondary turbo EGR flange gaskets. W'shop foreman said it was ****ing out. They did not work on this? I'm not sure, but I don't think they would have even touched the second turbo area other than removing the exhaust pipe to access the engine mount. As the engine was cold this time, they then did a once over with soapy water (a suggestion from a young apprentice 'why don't you go old school') and they also found the brand new primary turbo to be leaking at (i think) the actuator for the blow off valve; so new primary turbo being ordered to replace the new primary turbo. Going in to have a look and take some pics tomorrow.