Brian422 Posted March 24 Report Share Posted March 24 From new my Diesel Webasto Thermo Top C has used, according to it's profile, a DP2 Dosing Pump. I understand a Diesel installation should use Dosing Pump DP 30.2. I would be grateful if someone would advise on the differences between the two pumps and should I replace the DP2. Regards and Thanks Brian. Link to comment Share on other sites More sharing options...
matty40s Posted March 24 Report Share Posted March 24 The Thermotop Evo uses a pump which is much quieter and operates at variable speeds, with a much higher pulse rate than the ThermoC when at full belt. If your pump works, keep using it until it doesnt, then replace with the recommended one. Link to comment Share on other sites More sharing options...
Chewbacka Posted March 24 Report Share Posted March 24 (edited) Being curious I looked up the price of a genuine Webasto DP30 fuel pump. It’s almost £200!!! Here is the link if you want one https://www.butlertechnik.com/webasto-heater-fuel-pump-12v-dp30-86115a-86115b-85106b-p138 Edited March 24 by Chewbacka Link to comment Share on other sites More sharing options...
Brian422 Posted March 24 Author Report Share Posted March 24 Thanks for reply but I'd found listing on butlertecnik. Really want to know whether there's a requirement to replace a little used DP2 with a DP30.2. Link to comment Share on other sites More sharing options...
Chewbacka Posted March 24 Report Share Posted March 24 9 minutes ago, Brian422 said: Thanks for reply but I'd found listing on butlertecnik. Really want to know whether there's a requirement to replace a little used DP2 with a DP30.2. Assuming you have been running the system for a reasonably long time and it works fine without using an excessive amount of fuel, how will changing the pump make it work better? When I fitted my Webasto heater (a few years ago) I called Butler Technik with a couple of technical questions and they were very helpful, they could probably answer your question, why not give them a call. That said, I am pretty sure Matty40s also knows a lot about Webasto’s so I would happily trust his advice. 1 Link to comment Share on other sites More sharing options...
David Mack Posted March 26 Report Share Posted March 26 On 24/03/2023 at 11:00, Brian422 said: From new my Diesel Webasto Thermo Top C has used, according to it's profile, a DP2 Dosing Pump. I understand a Diesel installation should use Dosing Pump DP 30.2. I would be grateful if someone would advise on the differences between the two pumps and should I replace the DP2. Regards and Thanks Brian. Does it work? If it ain't broke, why would you want to fix it? Link to comment Share on other sites More sharing options...
ditchcrawler Posted March 26 Report Share Posted March 26 4 hours ago, David Mack said: Does it work? If it ain't broke, why would you want to fix it? Well 3 posts have said that now, and it sounds like sense to my Link to comment Share on other sites More sharing options...
Brian422 Posted March 26 Author Report Share Posted March 26 I get the if it's working leave alone. My query was more about understanding what are the differences between the two pumps? Link to comment Share on other sites More sharing options...
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