My D5 build 2017 TD6 HSE Lux
I tried opening the throttle body but couldn't get the locking clip off. Removed the air intake hose instead and used a borescope to check the carb build up.
Interestingly, to the naked eye it doesn't seem so bad @35k miles. Borescope camera makes it look a lot worse (I'll post pictures shortly).
I hope to take another swing at it over the weekend.
Interestingly, to the naked eye it doesn't seem so bad @35k miles. Borescope camera makes it look a lot worse (I'll post pictures shortly).
I hope to take another swing at it over the weekend.
Thanks for the pictures!
more to come, hopefully this sunday
@gmfain Since you've had better luck with LR parts; any suggestions on where to find an OE throttle body LR078546?
The JLR branded one is quite expensive.
Pie-in-the-sky thought was to have a clean spare one, so I can replace it fairly quickly and take my time cleaning the old one.
(totally possible I'm way over-thinking this)
The JLR branded one is quite expensive.
Pie-in-the-sky thought was to have a clean spare one, so I can replace it fairly quickly and take my time cleaning the old one.
(totally possible I'm way over-thinking this)
I would just clean it. Buy one when it fails. IMO
https://www.walmart.com/ip/GELUOXI-T...erId=101085097
https://www.walmart.com/ip/GELUOXI-T...erId=101085097
@gmfain Since you've had better luck with LR parts; any suggestions on where to find an OE throttle body LR078546?
The JLR branded one is quite expensive.
Pie-in-the-sky thought was to have a clean spare one, so I can replace it fairly quickly and take my time cleaning the old one.
(totally possible I'm way over-thinking this)
The JLR branded one is quite expensive.
Pie-in-the-sky thought was to have a clean spare one, so I can replace it fairly quickly and take my time cleaning the old one.
(totally possible I'm way over-thinking this)
The throttle body cleaning wasn't too difficult. It had a decent amount of build-up at 35K miles.
My main worry was needing to re-adapt the throttle body after the reinstall, but thankfully the motor didn't skip a beat.
Things were messy so I didn't get a chance to take pictures after the cleanup, but the results were satisfactory. I can see myself cleaning this every 20-30K.
Interestingly, the back of the butterfly valve had quite a bit of build-up, something I can easily see causing the valve to clog.
Fortunately, it was very easy to cleanup with a toothbrush.
Perhaps, I will try the Heisenberg hack from Christian in the future, but it's not super necessary imo.
- I soaked the internals with carb cleaner in the first round
- followed up with brake cleaner
- used old toothbrushes and rags to scrub out the tenacious soot
- gave an hour in the sun to dry out the throttle body before re-install.
My main worry was needing to re-adapt the throttle body after the reinstall, but thankfully the motor didn't skip a beat.
Things were messy so I didn't get a chance to take pictures after the cleanup, but the results were satisfactory. I can see myself cleaning this every 20-30K.
Interestingly, the back of the butterfly valve had quite a bit of build-up, something I can easily see causing the valve to clog.
Fortunately, it was very easy to cleanup with a toothbrush.
Perhaps, I will try the Heisenberg hack from Christian in the future, but it's not super necessary imo.
Last edited by adam5; May 19, 2024 at 10:38 PM.
The throttle body cleaning wasn't too difficult. It had a decent amount of build-up at 35K miles.
My main worry was needing to re-adapt the throttle body after the reinstall, but thankfully the motor didn't skip a beat.
Things were messy so I didn't get a chance to take pictures after the cleanup, but the results were satisfactory. I can see myself cleaning this every 20-30K.
Interestingly, the back of the butterfly valve had quite a bit of build-up, something I can easily see causing the valve to clog.
Fortunately, it was very easy to cleanup with a toothbrush.
Perhaps, I will try the Heisenberg hack from Christian in the future, but it's not super necessary imo.
- I soaked the internals with carb cleaner in the first round
- followed up with brake cleaner
- used old toothbrushes and rags to scrub out the tenacious soot
- gave an hour in the sun to dry out the throttle body before re-install.
My main worry was needing to re-adapt the throttle body after the reinstall, but thankfully the motor didn't skip a beat.
Things were messy so I didn't get a chance to take pictures after the cleanup, but the results were satisfactory. I can see myself cleaning this every 20-30K.
Interestingly, the back of the butterfly valve had quite a bit of build-up, something I can easily see causing the valve to clog.
Fortunately, it was very easy to cleanup with a toothbrush.
Perhaps, I will try the Heisenberg hack from Christian in the future, but it's not super necessary imo.
As soon as I get mine back from the shop, plan on cleaning mine!
The dealer is evaluating my oil sensor with my extended warranty folks. Also an unknown oil leak.
Dropped it Friday. Hopefully mid week will have a decision.


