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| Fuel Metering head kits? | |
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| Tweet Topic Started: Sun Oct 5, 2014 12:45 am (2,052 Views) | |
| coomo | Sun Oct 5, 2014 12:45 am Post #1 |
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Hi Guys, have been lurking here a while.Its been a valuable source of info working through issues on my 2.5 16 valve.Ive the common problem of a worn fuel metering head .I was told by Merc specialist rebuild kits were available for these.Does anyone have any ideas where These can be sourced? Thanks. |
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| JustbeCoz | Sun Oct 5, 2014 8:18 am Post #2 |
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When you say worn, which parts do you think are worn and what are the symptoms? I have seen a post on here about the kit but cannot recall who posted. A bosch specialist / service centre should be able to help you though .http://www.cis-jetronic.com%2Fpublic_doc%2F07.3-0997-06.pdf Keep us posted. Edited by JustbeCoz, Sun Oct 5, 2014 8:22 am.
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| coomo | Sun Oct 5, 2014 4:35 pm Post #3 |
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Hi Apparently the diaphram is not in good condition.Tickover is a tad lumpy,and not what it should be.The merc specialist, told me its very worn. Edited by coomo, Sun Oct 5, 2014 4:37 pm.
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| JustbeCoz | Sun Oct 5, 2014 6:27 pm Post #4 |
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Being a fellow 2.5-16 owner I am always interested to hear of others experience. I don't know of any diagnostic that would tell you the diaphragm was worn. I could understand if it was holed and fuel delivery would be crap or nonexistent. From my own experience of the car I would say there are any number of other things that would be checked or tackled first before going for the fuel dizzy. In no particular order...... Plugs correct non resistive HT Leads Dizzy Cap and Rotor Fuel Filter Idle Control Valve EHA leaks Airflow Potentiometer AFM plate centred properly and free movement Throttle open/closed switch Idle microswitch OVP plus socket and wiring Fuel Pump Relay + etc Temperature sensor block and airfilter Valve timing correct. Injectors not weeping AFM rubber boot and idle air hoses Cold start valve working properly I've probably missed some but unless these have all been checked I would avoid the Fuel Distributor. Is it a well known specialist you spoke too and did he have the car in for diagnosis ? I've had my car 8 years and only just worked through the above to where I think it's running ok. A long running issue with cold start and stalling was the most elusive being caused by the rubber boot below the AFM being perished and split which caused a lean misfire and stumbling idle. Several owners over the years had apparently tried to counter this with mixture adjustment which was way out when the boot was replaced. Best of luck and keep us informed. These are great cars when running right. These people repair KE http://www.atpelectronics.co.uk/p/mercedes-190e-fuel-injection-ecu-ke-31-jetronic-4.html Edited by JustbeCoz, Sun Oct 5, 2014 6:34 pm.
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| coomo | Sun Oct 5, 2014 8:00 pm Post #5 |
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| coomo | Sun Oct 5, 2014 8:01 pm Post #6 |
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Hi the merc, guys fixed a cold start problem for me.They told me the fuel dizzy was very worn.Ive known them years, they are top notch. |
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| jeremy | Mon Oct 6, 2014 7:33 am Post #7 |
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There are 2 other companies that I know of. Kmi in Letchworth is one and there is a guy in Exeter Jeremy |
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| Chris Martens | Mon Oct 6, 2014 7:47 pm Post #8 |
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This http://www.ebay.co.uk/itm/291253709166 is a repair kit for the fuel metering head, they ship from UK as well. regards, Christian |
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| JustbeCoz | Mon Oct 6, 2014 9:31 pm Post #9 |
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Alternative US ebayer here with some good detail photos of where the o-rings go http://www.ebay.com/itm/Repair-Kit-for-4-CYL-Alloy-Bosch-Fuel-Distributor-for-Mercedes-Audi-VW-/171482662643?vxp=mtr#ht_6895wt_1238 also rebuild guide if not already posted http://www.cis-jetronic.com/public_doc/07.3-0997-06.pdf Edited by JustbeCoz, Mon Oct 6, 2014 9:40 pm.
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| coomo | Tue Oct 7, 2014 5:49 pm Post #10 |
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Thanks Guys.Cost of rebuilt unit is £375 plus vat via the specialists.Not sure, if these rebuild kits will fit mine though? My part no. is 0438 101 037.Which is a 2.5 these listings seem to be for 2.3 models? |
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| coomo | Tue Oct 7, 2014 5:54 pm Post #11 |
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Ah ! there seem to have one.Ive mailed them to check.Will update when completed! |
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| coomo | Fri Nov 21, 2014 9:00 pm Post #12 |
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Hi guys.Sorry for late response.Have been waiting for parts and fitment.Anyway, I got my fuel metering head back from ATP.Wow, they even repaint it.Not just clean it.Fitted it, and engine settled down to a perfect ticover.Just as my Merc specialist said.After 100k these cars need a new unit.Now its like a new car.No uneven tickover, and lightening throttle repsonse.Best £420 Ive ever spent! |
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| optimusprime | Tue Apr 18, 2017 11:23 am Post #13 |
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Thats good but you could buy 4 for that . But if you have the cash ,then its the right way to go. |
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