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Solved ✔ Mercedes B Class W245 Vibrating and Engine going off on Drive & R
21-12-2017, 20:01 PM,
Post: #11
Mercedes B Class W245 Vibrating and Engine going off on Drive & R
The gearbox had issues with conductor plate, output sensors which I repaired two months ago. I then changed oil and filter and the car was running like new. Only to start stalling. No error from diagnostic machine. The funny thing is if it senses the accelerator, it will move comfortably, gear ratios as expected whether hot or cold.

I am tending to rule out gear issues since the last experience I have, gear is too sensitive to even oil levels.

Will look at the same tomorrow morning to see whether it's fuel pump.

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21-12-2017, 20:08 PM, (This post was last modified: 28-12-2017, 09:11 AM by prospeed.)
Post: #12
RE: Mercedes B Class W245 Vibrating and Engine going off on Drive & R
From gearbox to fuel pump... that is weird cant help any more matey.
BTW what diagnostics did you use to diagnose the car, is it mb star?
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28-12-2017, 06:58 AM,
Post: #13
RE: Mercedes B Class W245 Vibrating and Engine going off on Drive & R
(21-12-2017, 20:08 PM)prospeed Wrote:  From gearbox to fuel pump... that is weird can help any more matey.
BTW what diagnostics did you use to diagnose the car, is it mb star?

Funny thing is, there is absolutely no code - from Chasis to Drive to Transmission. No code. I have even tried diagnosing using Autel Maxisys and nothing.

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30-12-2017, 03:03 AM,
Post: #14
RE: Mercedes B Class W245 Vibrating and Engine going off on Drive & R
(28-12-2017, 06:58 AM)Fredrick Kamau Wrote:  
(21-12-2017, 20:08 PM)prospeed Wrote:  From gearbox to fuel pump... that is weird can help any more matey.
BTW what diagnostics did you use to diagnose the car, is it mb star?

Funny thing is, there is absolutely no code - from Chasis to Drive to Transmission. No code. I have even tried diagnosing using Autel Maxisys and nothing.

Frederick,

It may be a long shot, but can you do a check on the Engine TIming?
The chain does get elongated, and the Timing skips a tooth or two.
WIS will show how to do the check

Best regards,
techseek
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30-12-2017, 07:26 AM, (This post was last modified: 30-12-2017, 09:30 AM by prospeed.)
Post: #15
RE: Mercedes B Class W245 Vibrating and Engine going off on Drive & R
If its a timing you should get crankshaft sensor cam sensor timing fault, I had this before on v6 clk, chain links wear out from long oil change intervals, anyway you are saying that there is no fault in the engine ecu and you did use mb star to disgnose it yes??
you never said what engine is in there, v6 ? what chasi w211 or 4 cylinder give us more info.
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02-01-2018, 18:02 PM,
Post: #16
RE: Mercedes B Class W245 Vibrating and Engine going off on Drive & R
(30-12-2017, 07:26 AM)prospeed Wrote:  If its a timing you should get crankshaft sensor cam sensor timing fault, I had this before on v6 clk, chain links wear out from long oil change intervals, any way you are saying that there is no fault in the engine ecu and you did use mb star to disgnose it yes??
you never said what engine is in there, v6 ? what chasi w211 or 4 cylinders give us more info.

Engine is 266.940 gearbox is 722.801 , chassis is W245. My worry is the vehicle has no error in DAS. Have tried cleaning throttle, cleaning fuel pump, cleaning fuel filter, Nothing is working.
Btw, I use two diagnostic tools, Autel Maxisys and VXDIAG tool with J2354 Passthu connected to Xentry 09/2016.

What errors do you get if the valve body is clogged?

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03-01-2018, 00:34 AM,
Post: #17
RE: Mercedes B Class W245 Vibrating and Engine going off on Drive & R
Did you replace L5 SENSOR?crankshaft position sensor

Ori winols user-ecu repair-cvt-vgs e.t.c. biker
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03-01-2018, 05:48 AM,
Post: #18
RE: Mercedes B Class W245 Vibrating and Engine going off on Drive & R
(03-01-2018, 00:34 AM)pepito Wrote:  Did you replace L5 SENSOR?crankshaft position sensor
Not yet. Wouldn't I be getting an error if the two sensors have an issue?

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03-01-2018, 09:07 AM, (This post was last modified: 03-01-2018, 09:13 AM by prospeed.)
Post: #19
RE: Mercedes B Class W245 Vibrating and Engine going off on Drive & R
   
Dont change any sensors before confirming that is faulty!!
i said before but i guess you didnt get me, takes 30mins, remove your valve body and check for crack its very common on this gearbox.

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03-01-2018, 12:58 PM,
Post: #20
RE: Mercedes B Class W245 Vibrating and Engine going off on Drive & R
Prospeed is correct. Valve body or gearbox main unit not gives every time error codes but when you check live data for star das mux, you see main axle rpm and second axle rpm. If they are not sync, or if motor ecu not get that notice, ecu shut down system or goes failure mode.
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