www.W116.org - The #1 resource for our W116! Established 2004
Quote from: daantjie on 20 April 2024, 08:46 PMQuote from: 79W116 on 20 April 2024, 08:27 PMUnwired ToolsQuote from: Rolo on 19 April 2024, 04:39 PMI experienced the same with ACC. Replaced with UWT electronic controller. A big mistake. Rebuild the existing unit.
What is a UWT please?
Quote from: ptashek on 20 April 2024, 03:06 PMInvest some time into identifying, and getting rid of leaks.^^^^THIS. And to elaborate a little, it's a good practice to use a little silicone grease on the rubber fittings. It makes tubing easier to install and contributes to an even better seal IMO. The check valves are cheap and readily available. And pay special attention to the master lock valve. Mine failed and the brand new replacement turned out to be not good. !!!??? The supplier sent a replacement and all was fine. However, the positioning/alignment with the locking lever is critical. Even a tiny bit off and it will appear to leak even if valve is good. A secondary benefit is that you can clean and lube window mechanism while door is open, though you probably did that during your frame-off.
Replace all lock actuator diaphragms on principle. Same with rubber tubing connectors. Make sure all check valves are in working order. Replace rear and front vacuum reservoir grommets where the hard line enters the reservoir. Replace vacuum valves in heating system, or at least check for leaks. Check the master lock valve, it's a common source of leaks.
Do one thing at a time, then vacuum test the whole system. If it still leaks, move to the next item on the list. Once leak free, the system works perfectly fine.
Quote from: 79W116 on 20 April 2024, 08:27 PMUnwired ToolsQuote from: Rolo on 19 April 2024, 04:39 PMI experienced the same with ACC. Replaced with UWT electronic controller. A big mistake. Rebuild the existing unit.
What is a UWT please?
Quote from: Rolo on 19 April 2024, 04:39 PMI experienced the same with ACC. Replaced with UWT electronic controller. A big mistake. Rebuild the existing unit.
Quote from: admin on 19 October 2011, 12:24 AMPlease keep all discussions on topic and respect the discussion instigated by the original poster.
There is no additional charge for starting new topics!
Should you wish to take any discussion off topic, please do so by starting a new topic in the appropriate category. In such a case, you may still quote from the original discussion.
Should the topic starter discover the subject for the original issue is incorrect due to a misdiagnosed issue, please take the time to change the subject to reflect the correct issue.
Staying on topic ensures that discussions are easily found by all existing and new members and ensures that anyone wishing to participate in the discussion can do so without confusion or distraction.
Quote from: Gpapaniko on 13 September 2023, 07:21 AMI'd check out Kent Burgsma on Mercedessource on YouTube for tips on the vacuum leaks. My central locking lasts for about 20mins so enough time to lock the car but not enough to reopen her for all the passengers. Ive done some chasing of the lines for obvious leaks without luck. The vacuum tank is under the rear parcel shelf. If you are getting 2 hours, its actually pretty good. My tensioner also looks bent but otherwise no squeals. I do have a noisy ac clutch and the system runs quieter with the ac on
Page created in 0.034 seconds with 16 queries.