mercedes E280

[nico2610]

Hello everyone,I have a problem with a mercedes e280 cdi February 2005, about 5 months ago I replaced the alternator....
now back in the workshop with the same problem I did check the alternator and it was short-replaced again, but the car doesn't start!!!
with the diagnosis (launch)gives me the following errors 2248/4 2249/4 alternator, 2521/8 system command start and 2045/2 component b70
diagnosed with reflex top p2248 p2249 p2521 and p2045.
has anyone had similar problem?
thanks

[jolidj]

the motor runs but no part or I consent to the starter?

[nico2610]

even the consent to start-up

[jolidj]

you have to make a diagnosis with the star and you have to see on real-time parameters (those ecu I will agree.
with the diagnosis of their you also have a better explanation of the dtc.

[nico2610]

thanks joli

[blackwolf76]

I would check all the fuses and the rel? in the box of the engine compartment in front...

Similar problem on a car that is similar, resolved with a replacement rel? power transmission/esp

[sno74]

It is true lauch and star work the same, only that the ori provides instructions for pdf and diagrams very useful when you have these types of problems...........

[nico2610]

******** I rel? power in the trunk checked but they are ok

[blackwolf76]

let it be ********... in the trunk has the relay service, the fuses and the relays the main stand in the front bonnet, in the direction of the shock absorber left, on the side of the steering wheel.

[nico2610]

thanks wolf I check in the morning

[nico2610]

I tried the rel?,seem ok why? you feel the contact take, but by moving the car ? failed to get off 1 time on 3

[Iltulipanonero]

See that the b70 ? the sensor in the engine rpm.
Would check with the oscilloscope.

[blackwolf76]

But are you sure it is not the starter that is not good??

Of those cars, I have handled a little and I can tell you that when you do not give consent to start-up or ? the starter motor or the limit fuse of the same.

When not part connects a meter on the cable pulse on the motor and check if you get voltage.

[beppe.c]

to me, and something similar with the c-class,have burned 2 alternators, and then would not start any more,and then I attached the booster and the game,I loaded the battery and after 2-3 goodwill would not start(but no, the motor ran slow but that he had not the consent)replaced the battery and no longer had the problem of alternators and loss of goodwill.

[redline]

hi pou is possible that these continuous lowering of attention have been sent to tilt the engine ecu you have to make a diagnosis of the engine control unit amdare in the item adaptations and rewrite the vin (chassis number ) the texsa products makes sure other diagnoses do not know the test

[nico2610]

thanks to all for the advice tomorrow morning the resume in hand (today urgent work) as soon as I solve the poster? everything in detail