MB ML 4.0 CDI Temic Ecu repair

[tuberider]

Hello, i have a Mercedes ML 4.0 CDI 184kw with a
Temic A6281530879 here.

Car starts fine when the engine is warm, when the engine is cold starting is a nightmare, rpm are oscillating up to no start at all.

Any info would be highly appreciated.

[kool_mi]

CHECK INJECTEUR AND REGULATEUR PRESION GAZOIL

[mercis]

CHECK INJECTEUR AND REGULATEUR PRESION GAZOIL

om 628 cdi1 ecu have trouble cold start
injektor have low voltage,(condensator)
cdi2 this problem solved

[bazare]

Please give more details if possible.

[snatchme]

Hello,

does someboby have a picture of the condensator that should be faulty in these ECU's?
or can anybody mark it when i upload a picture?

Thanks for the help!!

[tanito]

Replace the capacitor as in the photo on the left

[split78]

you have tsest and work 100% ?

[tanito]

Yes I have mercedes s 400 cdi, had the same problem.

[vwpassat]

I am in the same situation with 628 engine /400cdi

Engine doesn't start at all. There is dtc 2017 current and stored and 2016 stored and this can be erase.
2017 is always and when engine cranking (starter run) 2016 come back.
Dtc 2017 Injectors faults (all of them 1,2,3,4,5,6,7,8)
When starter rotate dtc 2016 short injector only for: 1,4,6,7.

Since 2 days I have checked injectors and wiring ECU engine and everything is OK. There is 345 bars diesel fuel also while starter rotate and despite all this engine not run.There is fire 2,3,5,8 cyl but not enough mg nozzle injection that engine start running.

I have checked all 8 injectors on other car and engine works well, there is no injectors trouble.

There is no injectors troubles or wiring.
The trouble is in the ECU, but where? Capacitors? Witch one? Or 2J74Y?

Would anybody help me?
I will appreciate it. Thank you.

[faiscamix]

Temic = china power supply . check capacitors and protection diodes .

[tuberider]

....i didn`t see 2j74y in this ecu

[vwpassat]

2j74y is on the other side

....i didn`t see 2j74y in this ecu

[tuberider]

...ok, try heat the 2j74y and check what the inyeccion is doing, if suddenly runs better read e2 and flash and burn into new chip

[vwpassat]

I had and is the same, no result.

...ok, try heat the 2j74y and check what the inyeccion is doing, if suddenly runs better read e2 and flash and burn into new chip

[split78]

I have an ecu TEMIC has the problem, I change capacitor or 2j74y?