Pagoda SL Group

W113 Pagoda SL Group => Wanted To Buy => Topic started by: Pawel66 on July 05, 2025, 10:32:27

Title: Early Cold Start Valve Ponton W128
Post by: Pawel66 on July 05, 2025, 10:32:27

I am looking for early type of Cold Start Valve for Ponton W128. Or at least the coil part (with the connector).

Mine is damaged beyond repair - the bakelite connector part is broken off, causing fuel leak.

Title: Re: Early Cold Start Valve Ponton W128
Post by: Pawel66 on July 11, 2025, 10:39:39

I bought the new coil part of it. Will test.

Title: Re: Early Cold Start Valve Ponton W128
Post by: SEB on August 06, 2025, 20:40:46

Hi Paweł,
If the coil doesn't work, here's a link to a seller on eBay you can check:
https://www.ebay.de/sch/i.html?_nkw=mercedes+w128+kaltstart+ventil&_sacat=0&_from=R40&_trksid=p4432023.m570.l1313

Title: Re: Early Cold Start Valve Ponton W128
Post by: Pawel66 on August 07, 2025, 04:57:51

Thank you for your kind attention!

This, however, is the coil for the later style valve. Early ones had valve rod as a separate part, it was pulled into the coil when actuated. So the coil had empty channel inside and no push rod sticking from it.

Just weird design of the early valve.

Title: Re: Early Cold Start Valve Ponton W128
Post by: Pawel66 on August 25, 2025, 11:53:01

I bought just the coil part from www. MB-neuteile.de. A very patient and reliable vendor, can recommend.

Title: Re: Early Cold Start Valve Ponton W128
Post by: Benz Dr. on August 25, 2025, 15:19:08

It may not make very much difference, but I've never had a problem starting one of these cars hot or cold. Working CSV seems not to matter that much.

Title: Re: Early Cold Start Valve Ponton W128
Post by: Pawel66 on August 25, 2025, 15:30:57

Ok, just wanted to have a working one :).

Title: Re: Early Cold Start Valve Ponton W128
Post by: Benz Dr. on August 25, 2025, 21:05:45

Quote from: Pawel66 on August 25, 2025, 15:30:57

Ok, just wanted to have a working one :).

So did I, but I was happy to find out it would start easily without it. I ended up blocking the line to the CSV so it wouldn't leak fuel into the engine.

Title: Re: Early Cold Start Valve Ponton W128
Post by: Pawel66 on August 26, 2025, 05:30:58

Thank you, it is good to know that it may work this way. I have not yet checked the leaking, this is the next step. I have oberhauled all the components of the start aid set up, this valve is the last bit. We will see…