| Welcome to Mercedes-190.co.uk We are the Mercedes 190 owners forum, the place to be for all owners and fans of the Mercedes 190E, 190 and 190D cars. Including Cosworth (2.3 16v and 2.5 16v), EVO 1 and EVO 2 models. Modified and concourse, track cars and daily drivers, all are welcome. This free UK based forum was started back in November 2005 to serve the Mercedes 190 W201 community and now has over 9000 members from all around the world and 600,000 + posts. The members welcome you and encourage you to stay a while and have a look around. We offer you friendly chat and access to some very useful information as well as tutorials with photos and videos for many common repair and maintenance jobs. Whatever your needs there is a good chance you will be able to find what your looking for. Such as our Mercedes 190 buyers guide Sign up to gain access to all areas including for sale / classified areas and country wide meetings and events. Many forum features and sections are only available once you sign up. Join our forum at mercedes-190.co.uk! If you're already a member please log in to your account: **New members signing up** please check your junk mail for the email authorization email otherwise we cannot verify your new account. I have noticed a lot of unauthorized accounts in the system. Regards Admin |
| Injector Removal And Refitting; a small guide | |
|---|---|
| Tweet Topic Started: Thu Nov 8, 2007 2:56 pm (25,358 Views) | |
| Desmoboy | Sun Mar 14, 2010 11:25 am Post #41 |
|
Part of things
![]() ![]() ![]() ![]()
|
I was just about to post a qustion about how to get these old seals off, even took some photoes to put up. Thanks for this pictorial explanation,brilliant ! |
![]() |
|
| Klasse1190 | Thu Jul 22, 2010 12:34 am Post #42 |
|
Old Skool Motors
![]() ![]() ![]()
|
Cheers for the info everyone. Just passed 150K so think new injectors next project. |
![]() |
|
| stwat | Thu Jul 22, 2010 12:45 am Post #43 |
![]()
|
Nice to see my pictures are back up They went missing for quite a while after photobucket messed around and updated their site "before"
|
![]() |
|
| mexicopaul | Tue Apr 5, 2011 8:20 pm Post #44 |
|
Part of things
![]() ![]() ![]() ![]()
|
Great post this about injectors,i have just ordered 4 new injectors plus seals for my 1.8,its running OK but not 100% as it should so hoping this sort it out,its got 120 thou on the clock now.Paul |
![]() |
|
| gibpetrolhead | Tue Apr 5, 2011 8:25 pm Post #45 |
![]()
Racing line
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
You'll notice a difference with the new one's in place Paul, also remember the k-jet will need a tweek.
|
![]() |
|
| chevy | Mon Apr 11, 2011 7:39 pm Post #46 |
|
Newbie
![]() ![]() ![]()
|
sorry to bother u, dont know how to post a question yet. HELP, not getting any feul to my injectors, any ideas, feul is reaching distribution unit. car has sat for a while and i have just put engine and box back in car . any help would be grateful.Tony |
![]() |
|
| mexicopaul | Sat Apr 16, 2011 6:47 pm Post #47 |
|
Part of things
![]() ![]() ![]() ![]()
|
Just fitted the new injectors plus seals,what an easy job thats is.on my 1.8 it had a 14mm bolt instead of the allen bolt.wish i had done it before now. What is the correct way to reset the ECU for the re-learn process.Is it just disconnecting your battery and reconnecting it????.Paul Edited by mexicopaul, Sat Apr 16, 2011 9:16 pm.
|
![]() |
|
| stwat | Sat Apr 16, 2011 10:27 pm Post #48 |
![]()
|
There is no need to reset the ECU Paul. They are very basic on these cars and will happily run even with the ECU disconnected. |
![]() |
|
| gibpetrolhead | Sat Apr 16, 2011 10:36 pm Post #49 |
![]()
Racing line
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
Paul you may want to have it connected to a Co2 analyser to check its not running too rich or too lean with the new injectors.
|
![]() |
|
| matteus | Sat Sep 17, 2011 1:28 pm Post #50 |
|
Newbie
![]() ![]() ![]()
|
I wonder if there is any difference in size (amount of cc) between injectors of e.g. a 2.0, 2.3, 2.6, 16-valver... I have a 190E with a 2.3 8-valve engine with turbo-kit. I want to buy new injectors, but I'm wondering if there are any options to put in bigger injectors from another engine. Having A/F ratio problems (knocking), I would want to try this if possible. |
![]() |
|
| Richy190E | Sat Sep 17, 2011 5:57 pm Post #51 |
|
bubble bubble
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
They are all the same IIRC. |
![]() |
|
| matteus | Mon Sep 19, 2011 7:55 pm Post #52 |
|
Newbie
![]() ![]() ![]()
|
Too bad. ![]() Any (non OEM) alternatives you guys know of? |
![]() |
|
| stwat | Mon Sep 19, 2011 8:33 pm Post #53 |
![]()
|
The only way to 'upgrade' the fuel system in these cars is to remove the system and replace with EFI or similar. |
![]() |
|
| gibpetrolhead | Mon Sep 19, 2011 9:56 pm Post #54 |
![]()
Racing line
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
You can get them off ebay periodically and there much cheaper.
|
![]() |
|
| twopointsix | Tue Sep 20, 2011 10:58 am Post #55 |
|
Addicted
![]() ![]() ![]() ![]() ![]() ![]()
|
This weekend I plan to replace the fuel injectors on my '89 M103 engined 2.6. The tutorial on here is very useful, thank you. I've already got the injectors and new black seals, but the Mercedes EPC (which I suspect is a "one size fits all" for both M102 and M103 engines) shows this![]() Sorry about the quality, but I'm trying to identify the following and work out if my engine has these and if so what needs replacing Item 14 Guide & guide tube - does the M103 have these? Item 17 - Insulation: as I understand it this is only on engines from 1983-1988 so should be substituted with...... ..........Item 17 - Bushing Item 20 - Seal ring - Do I need these? Many thanks in anticipation. Apologies for any seemingly daft questions, but I don't want to make a start and then find I'm missing something vital. |
![]() |
|
| matteus | Fri Sep 23, 2011 3:36 pm Post #56 |
|
Newbie
![]() ![]() ![]()
|
You mean OEM spec injectors (but not from MB), or actually upgraded injectors suitable for our engines? |
![]() |
|
| gibpetrolhead | Fri Sep 23, 2011 3:44 pm Post #57 |
![]()
Racing line
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
The ebay ones are Bosch which I have bought and fitted on a valver and are the same as the ones that MB sell. |
![]() |
|
| gibpetrolhead | Fri Sep 23, 2011 3:54 pm Post #58 |
![]()
Racing line
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
Heres the injector threads. http://mercedes-190.co.uk/topic/6636812/ and http://mercedes-190.co.uk/topic/6624881/ They have got dearer when I bought mine it was £14 each.
|
![]() |
|
| gibpetrolhead | Fri Sep 23, 2011 4:01 pm Post #59 |
![]()
Racing line
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
Twopointsix I'm not sure about the 2.6 engine but I know there are no guide tubes, PM 'stwat' he can help you with any questions. |
![]() |
|
| twopointsix | Fri Sep 23, 2011 6:49 pm Post #60 |
|
Addicted
![]() ![]() ![]() ![]() ![]() ![]()
|
Thanks gib, I was pretty sure there were no guides, so you've just confirmed it. |
![]() |
|
| matteus | Fri Sep 23, 2011 8:18 pm Post #61 |
|
Newbie
![]() ![]() ![]()
|
Thanks for the ebay-link, Gib! I'll surely look into those... |
![]() |
|
| twopointsix | Sat Oct 1, 2011 4:57 pm Post #62 |
|
Addicted
![]() ![]() ![]() ![]() ![]() ![]()
|
Thanks to peelywally, a most talented, highly experienced, dare I say "braw" (some might even say ruggedly handsome) Scottish amigo -fitted new injectors, seal rings & bushings to my M103 engined 2.6. To clarify a few points which I think others may have either missed, misinterpreted or got wrong...... For those who claim the M103 doesn't have an injector guide tube - well mine did! See photo below ![]() from left to right: 1: old injector, with old rubber bushing still in place 2: plastic guide tube, 3: new seal ring (part number A103 997 0045), below that - the new rubber bushing (A103 070 0054), and far right, new injector. Removing the 5mm hex bolt proved much easier with a longish 5mm allen key and another 5mm allen key with the angle cut off, i.e making a straight allen key, and undone with a small ratchet: see pic below ![]() On the middle three cylinders, access to the 5mm bracket bolts was much easier by first completely removing the injector pipes from the fuel distributor - taking care to blank off the screw holes in the fuel distributor with masking tape to prevent the ingress of any dirt. The plastic guide tubes slide into the alloy of the cylinder head and have a thin rubber seal ring sitting in a groove about half way down. The seal rings were gently prised out and replaced with new ones. £5.40 for six seals from the dealership - not worth keeping the old ones at that price. Everything was given a good clean before anything new was fitted. To be brutally honest - peelywally did all the work whilst I made the tea. Hope this clarifies the situation. Edited by twopointsix, Sat Oct 1, 2011 7:14 pm.
|
![]() |
|
| peelywally | Sat Oct 1, 2011 5:31 pm Post #63 |
|
Newbie
![]() ![]() ![]()
|
Nice write-up 2.6. Did you do all that yourself? Remarkable! By a strange coincidence I have a ratchet and allen key arrangement like that at my place. Ahem I would draw the line well before the 'ruggedly handsome'. however, you do make a nice cup of tea.
Edited by peelywally, Sat Oct 1, 2011 9:10 pm.
|
![]() |
|
| gibpetrolhead | Sat Oct 1, 2011 5:53 pm Post #64 |
![]()
Racing line
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
Sorry if have given you the wrong infomation twopointsix, everything in you write up looks the same as the valver setup except for the guide tubes which on the valver look like this.
|
![]() |
|
| twopointsix | Sat Oct 1, 2011 7:17 pm Post #65 |
|
Addicted
![]() ![]() ![]() ![]() ![]() ![]()
|
Nice write-up 2.6. Did you do all that yourself? Remarkable! By a strange coincidence I have a ratchet and allen key arrangement like that at my place. Write up now suitably amended! Thanks to peelywally who is a gem. |
![]() |
|
| mchell | Sun Oct 9, 2011 10:28 pm Post #66 |
|
Part of things
![]() ![]() ![]() ![]()
|
Hi Does anyone knows if these seals ( http://www.ebay.co.uk/itm/290472925873?ssPageName=STRK:MESINDXX:IT&_trksid=p3984.m1436.l2649 ) would fit in the injectors for a 2.6? They say M102, but aren't they 'one size fits all'? Also, which size of wrench is used on the injectors and the tubes from the fuel distributor? Cheers HC |
![]() |
|
| barretts02 | Mon Jan 2, 2012 5:32 pm Post #67 |
|
Part of things
![]() ![]() ![]() ![]()
|
Can anyone confirm this? seems strange that the same injectors are used on a 1.8 and then also on a 2.5-16v and a 2.6 I6. But then again they are just brass tubes I suppose. |
![]() |
|
| Paulossie | Mon Jan 2, 2012 6:30 pm Post #68 |
|
Potato
![]()
|
Yes they are definitely all the same, go to ebay and look for Mercedes 201 injectors and they are all listed along with the Ferrari cars |
![]() |
|
| stevie w | Sun Jun 3, 2012 2:17 pm Post #69 |
|
Part of things
![]() ![]() ![]() ![]()
|
Cossie connoseur, Thanks for excellent tutorial on changing fuel injectors, Gave me the confidence to have a go on my 2.0 m102 sportline. Really easy to do took about 20 minutes,With new rubbers. The only slightly tricky one to change was the 3rd one from the front of the engine, As there is very little movement in the feed pipe. I found it easier to undo this pipe at both ends,makes it easier to line the union up without bending the pipe, Have noticed a definite improvement in power and a smoother idle,I think the ones in were the originals as they had the mercedes star engraved on them, Cheers, Steve |
![]() |
|
| horatio | Mon Jan 27, 2014 1:26 pm Post #70 |
|
Part of things
![]() ![]() ![]() ![]()
|
The idle on mine has always been a tad uneven, even with a new ICV, vacuum pipes, ignition bits etc... could worn out original injectors be the cause? Its on 151k. |
![]() |
|
| gibpetrolhead | Mon Jan 27, 2014 4:36 pm Post #71 |
![]()
Racing line
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
The recommended replacement is at 70k but they're fine for twice that mileage so they could be due for a change. Test with some cleaner first and if that improves the idle then you would know. But it's not the only possible problem or solution. |
![]() |
|
| eagle3 | Thu May 29, 2014 8:03 am Post #72 |
|
Therapy Needed
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
How much you paying for injectors in the uk these days? I can get these Febi http://www.webdealauto.com/fr/injecteur/febi-bilstein-29390/3902.658798.html and the seals http://www.webdealauto.com/fr/support-soupape-d-injection/febi-bilstein-06798/3914.162461.html That's about €200 for six delivered. Bosch ones about €40 each. |
![]() |
|
| Big Ben | Thu May 29, 2014 9:23 am Post #73 |
|
Sneaky 2.5-16 Driver!
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
£28.99 each for Bosch injectors! Ebay link |
![]() |
|
| Vtec | Thu May 29, 2014 9:25 am Post #74 |
|
Part of things
![]() ![]() ![]() ![]()
|
Also check german ebay, they work out £25 each and that's with seals. |
![]() |
|
| eagle3 | Thu May 29, 2014 10:20 am Post #75 |
|
Therapy Needed
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
Yes €144 + €8.50 P&P on german ebay for six. Not sure whether seals are included. http://www.ebay.fr/itm/6X-INJEKTOR-BOSCH-SATZ-MERCEDES-BENZ-S-KLASSE-W126-260-300-SE-/291152106743?pt=DE_Autoteile&hash=item43ca0494f7#shpCntId Edited by eagle3, Thu May 29, 2014 10:23 am.
|
![]() |
|
| eagle3 | Mon Sep 15, 2014 11:50 am Post #76 |
|
Therapy Needed
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
Can someone confirm whether these are the right injector seals for my 1992 2.6 http://www.webdealauto.com/fr/support-soupape-d-injection/febi-bilstein-06798.3914.162461.362.html I'm going to order six injectors from that german ebay site I linked to above. Not sure whether they come with the seals though. Price now down to € 142.50 + €8.50 . |
![]() |
|
| Gaz2N | Mon Sep 15, 2014 1:03 pm Post #77 |
![]()
Old Merc nutter
![]() ![]() ![]() ![]() ![]()
|
They look ok but you'll need the outer o-rings too. The outer ones fit around the plastic tubes. Gary |
![]() |
|
| eagle3 | Tue Sep 16, 2014 1:15 pm Post #78 |
|
Therapy Needed
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
Just removed all six injectors with the plastic sleeves. A decent 5mm Allen key with hex "ball" on the long end was good enough to get all six out. I did remove the fuel line cluster for the front three cylinders. BTW I would recommend getting a good set of strong long Allen keys for these cars. A set to 10mm is well worth the 20 quid or so. I'm going to take them to town to get cleaned and tested as I'm not sure how old they are. I'll be renewing all the seals of course. i fancy the cup seals are a tad loose. Kent's vid on removing them on an M104 http://www.youtube.com/watch?v=pOZRHt-GkHY |
![]() |
|
| eagle3 | Wed Sep 17, 2014 4:30 am Post #79 |
|
Therapy Needed
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
Unfortunately the Bosch centre in town which tests and does ultrasound cleaning is no longer there! Anyway ordered some seals at MB. I did some testing with the compressor and they seem to be all opening around 3.5 bar. But I'll get a new set eventually - they're obviously getting a bit tired. MB wanted over € 60 a pop for them so I'll try the German ebayer. |
![]() |
|
| eagle3 | Fri Sep 19, 2014 11:46 am Post #80 |
|
Therapy Needed
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
Just got the seals from MB. 6 guide bushes A 116 070 0077 6 O rings A 103 997 0045 € 23.47 Just need some new injectors now.
|
![]() |
|
| 1 user reading this topic (1 Guest and 0 Anonymous) | |
![]() Our users say it best: "Zetaboards is the best forum service I have ever used." Learn More · Sign-up for Free |
|
| Go to Next Page | |
| « Previous Topic · Engine · Next Topic » |







![]](http://z2.ifrm.com/static/1/pip_r.png)




They went missing for quite a while after photobucket messed around and updated their site "before"









I would draw the line well before the 'ruggedly handsome'. however, you do make a nice cup of tea.



9:33 AM Jul 11