How To Change The Thermo Vacuum Valve On A Mercedes W124 (230TE)
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- Опубликовано: 14 окт 2024
- My Mercedes 230TE W124's Thermo Vacuum Valve plastic snapped, so I replaced it - Here's how!
You will need a 19mm socket for this.
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In your socket set you have the taller sockets.. it's better to use that one as it has a higher ceiling for the bolt and won't touch the hose connectors and break them 😊
Thanks for the advice!
god! finally a video on this! thank you!
You're welcome! I noticed there weren't any about this - so made one myself!
Hi mate, great video! I am rebuilding my engine 230ce, but I stuck with vacuum lines, the ones you connected there, would you be able to send me a video or photos how they are connected on yours? so I can copy and connect mine in the same order, please? Thank you :)
Hello Lukasz, thanks for watching! Unfortunately I don’t have the car any more so I can’t double check how they are connected 🙁
Hello. Were there any engine symptoms? Was the valve mechanically damaged?
From what I remember, terrible idle and having to hold revs for a few minutes when starting up or it would stall. The only obvious damage was a snapped plastic piece meaning one of the hose pieces wouldn’t stay in place.
Did you have any fuel smell while it was broken?
It was a while ago now so I can't remember to be honest!
Hey i have the same problem. i changed the piece. but i cant find where to plug the cables could you help me?
Messaged 👍🏻
nereye bağlandığını buldunuzmu hocam zira aynı sorunu yaşıyorum bir yere bağlı ama yanlış olduğunu düşünüyorum
What are the other sensors around them? I'm having poor start up but after the car heats up to 60 degrees it's fine
There’s a number of things it could be. I’ve changed the OVP relay, cleaned the ICV and a number of things I can’t remember off the top of my head.
If you haven’t already, join “W124 enthusiasts” page on Facebook, lots of insights there
@@JAYPCARS thanks champion 💪
More than welcome Jermaine 👍🏻
Hi, what does thermovalve work for?
Hi, as far as I’m aware it’s for the evap system. It burns vapour and sends it to the carbon canister to help reduce emissions. Some say it’s for when engine is cold, it activates and helps start the car when cold. Haven’t found a 100% definitive answer as to which it is.
@@JAYPCARS ok thanks for your answer
It regulates ignition for cold starts. As far as I know that's all it does. Also, it doesn't matter which vacuum hose you connect to which prong, it is a throughput system. It acts as a valve in the middle of the vacuum hose and thus it doesn't matter as long as both sides are connected. My W201 also had one prong brake off, so while I was waiting for the month-long shipment (from Lithuania, it seems half the merc parts on ebay are there) I just connected the vacuum hoses to each other with a piece of plastic hose and the car worked fine in the meantime. Only the revs were a bit on the high side because as far as it was concerned the valve was always "open" so the engine was always reported as "cold" even though it wasn't.
@@jayzhead Thanks for the info, it's one of those parts I couldn't find much on, and got conflicting answers from others. Very useful to know!
@@jayzhead hi . My question is does this valve influence fuel consumption? My mercedes 190 diesel 2.5 5 cylinder should consume 6 liters per 100 kms outside the city. Now it consumes nearly 8 liters . I have no fuel leaks whatsoever anywhere. The o rings et copper spacers have been changed on the injection pump . What can i check ? I have also another air control valve for the intake manifold which works electric and with air too. Thanks.
There is no in and out, it is either open or closed
es compatibil con mercedes 190e 2.0
Can't be sure, should state compatibility when buying product.
air cleaner looks like a piece of wreckage from the Titanic
😂😂 Only a bit of surface rust I promise!
How to test vacuum valve ?
Hello, I think I just changed it out because the symptoms the car was having pointed towards the valve.
THEY GO BY DEGREES AND SHOULD BE STAMPED ON IT. ALSO SAME COLOUR WHITE OR RED OR BLACK
Good info, thanks 🙏🏻
@@JAYPCARS What Mercedes car do you have ?
@@borntolate1 this was a 1992 230TE