[W126 Coupe] Hard start

[Kent Kihl]

Well, I had the problem with cold start, and was first told it probably was
the cold start valve, then next advice was the fuel pumps; and then I took
it to the local MB dealer/garage and they told me that the fuel injectors
needed to be replaced; that the cold start valve needed to be replaced and
also the fuel pumps and for this they wanted R13.000 (about USD2.000), I
told them that I will think about it and book a new time, they charged me
R1.350 (about USD150) for the diagnosis. Then when I came outside the garage
and was going to cross the road I nearly had an accident because the car
barely moved fore ward, even with the accelerator pressed as hard as I
could, the workshop is on the first floor, the car couldn’t get up of his
own, it had to be towed, they spent 2 hours, and told be that the cruise
control unit had to be replaced, another R5.000 (USD750), they took it for a
test-drive And claimed it now worked properly. The following day I could
only get it up to 70 km/h (45mph) and in uphill struggling to get it faster
than 20kmh. Back to the MB workshop, they spent another 2 hours and finally
the guy discovered that they had mixed the rods (the one from the cruise
control unit to the lower and the one from the accelerator to the upper,
instead of the other way around) during this time the manager came and he
told me that he did his learner ship on the 560 engine, and he loosened the
injector pipes, (while he run the engine on high rev, knocked on them with
the spanner, tightened the nut again, did all 8) he suggested I should put a
fuel cleaner in full tank and ‘blow out’ on the highway.

The car went perfectly and has no problem with cold start any longer.

Kent Kihl
082 4960914
1989 560 SEC

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