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Hermann MHC-218
- Vilpo
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4 weeks 1 day ago #22009
by Vilpo
Hermann MHC-218 was created by Vilpo
Hello!
I know its a german forum, i hope its ok to write in english though?
I just bought this Gastester MHC-218, and have a few issues with it. I noticed there are some experts on this forum that may be able to help?
So one thing, i get all other values on the measurement, but on O2 and lambda i get dashes --.-- . Maybe i have an issue with the oxygen sensor, and if so where it is located?
Other thing, other values seem to show correctly, but HC is too high (about 100ppm too much at idle), compared to values on the same car on inspection.
And also, when i run the leak test it shows "not passed".. Can this be related to the oxygen or hc values..?
Thanks in advance!
Ville
I know its a german forum, i hope its ok to write in english though?
I just bought this Gastester MHC-218, and have a few issues with it. I noticed there are some experts on this forum that may be able to help?
So one thing, i get all other values on the measurement, but on O2 and lambda i get dashes --.-- . Maybe i have an issue with the oxygen sensor, and if so where it is located?
Other thing, other values seem to show correctly, but HC is too high (about 100ppm too much at idle), compared to values on the same car on inspection.
And also, when i run the leak test it shows "not passed".. Can this be related to the oxygen or hc values..?
Thanks in advance!
Ville
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- Obelix
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4 weeks 1 day ago #22011
by Obelix
Gruß
Christian
Replied by Obelix on topic Hermann MHC-218
…i fear someone manipulated a lot on this Tester, usualy you dont get into the messurement Programm if the O2 Sensor is worn or the leak Test isnt successfull !
Gruß
Christian
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- Dr-DJet
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4 weeks 6 hours ago - 4 weeks 23 minutes ago #22014
by Dr-DJet
Viele Schraubergrüße - best regards, Dr-DJet Volker
Alles für den Mercedes-Benz R/C 107 und W116 in der SLpedia Sternzeit 107
Workshop K-Jetronic 31.8. (F), Jubiläumstreffen 18.10. bei Bosch (N)
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Replied by Dr-DJet on topic Hermann MHC-218
Hi,
oxygen sensor is behind a lid on back right side. Normally this tester makes a selftest before it starts including oxygen sensor, pressure sensor and gas measuring bench. You should see those tests being performed before it starts. If one test fails it shall not start.
oxygen sensor is behind a lid on back right side. Normally this tester makes a selftest before it starts including oxygen sensor, pressure sensor and gas measuring bench. You should see those tests being performed before it starts. If one test fails it shall not start.
Viele Schraubergrüße - best regards, Dr-DJet Volker
Alles für den Mercedes-Benz R/C 107 und W116 in der SLpedia Sternzeit 107
Workshop K-Jetronic 31.8. (F), Jubiläumstreffen 18.10. bei Bosch (N)
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Last edit: 4 weeks 23 minutes ago by Dr-DJet.
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3 weeks 6 days ago #22018
by Vilpo
Replied by Vilpo on topic Hermann MHC-218
Yeah, it actually does the selftest and passes all the tests in the start screen. But if i run the leak test through the menu it fails. Hard to say if someone did something to bypass the tests.
But i recall the previous owner stating that the O2 and lambda was still working when he used it the last time..
Thanks, i will check the oxygen sensor. Can i test it somehow to confirm its failed?
Also does anyone know where i could get parts or calibration gas for it?
Thanks for the help!
But i recall the previous owner stating that the O2 and lambda was still working when he used it the last time..
Thanks, i will check the oxygen sensor. Can i test it somehow to confirm its failed?
Also does anyone know where i could get parts or calibration gas for it?
Thanks for the help!
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3 weeks 6 days ago #22019
by Dr-DJet
Viele Schraubergrüße - best regards, Dr-DJet Volker
Alles für den Mercedes-Benz R/C 107 und W116 in der SLpedia Sternzeit 107
Workshop K-Jetronic 31.8. (F), Jubiläumstreffen 18.10. bei Bosch (N)
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Replied by Dr-DJet on topic Hermann MHC-218
Hi Ville,
if measuring test bench does not pass leak test, it should also not continue. Check the rubber hoses inside if they are leaking. Also cleaning with water can help. There is a special procedure in manual how to do that.
if measuring test bench does not pass leak test, it should also not continue. Check the rubber hoses inside if they are leaking. Also cleaning with water can help. There is a special procedure in manual how to do that.
Viele Schraubergrüße - best regards, Dr-DJet Volker
Alles für den Mercedes-Benz R/C 107 und W116 in der SLpedia Sternzeit 107
Workshop K-Jetronic 31.8. (F), Jubiläumstreffen 18.10. bei Bosch (N)
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- Vilpo
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3 weeks 5 days ago #22022
by Vilpo
Replied by Vilpo on topic Hermann MHC-218
Ok, thanks Dr-DJet for the info. Will open up the unit today to check.
Unfortunately, i don't have a manual for it. Do you know where i could download or buy one..?
Unfortunately, i don't have a manual for it. Do you know where i could download or buy one..?
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