squelchy wrote:
In message , OxSc
writes
Petrol will damage the fuel *injection* pump. The fuel injection
pump operates at very high pressures, and is built to very fine
tolerances. It relies on the fuel for lubrication; petrol doesn't
fit the bill.
Speaking as someone who used to control field engineers and having
had to arrange for their diesel tanks to be emptied and refilled
with diesel on more than one occasion (all within 15,000 miles of
new) after the muppets filled them with unleaded and drove off, we
never had a single incident that cost us more than two tanks of fuel
and the garage costs for pumping out and disposal of the fuel (how
much does it cost to put the fuel in a breakdown truck?). We ran the
cars for over 100,000 miles and never replaced a pump, in fact we
never replaced anything in the fuel system apart from the filters.
13 Peugeot 406HDIs, one Renault Espace 2.2DT and an Audi A6 1.9Tdi.

Hi

the main reason I thought it could be the battery is due to the fact
that I have had this problem happen to me with a petrol car as well it
seemed that the engin was turning over fine with out any run down but
it terned out that the batery conections where lose only slightly and
because this slight loss of power it caused the engin to not start
first time occationaly like in your case as has already been sied the
compression rate on a deisal is higher there for it needs more juise
to get it going and to heat up the glow plugs if your battery is
chargeing properly it will not always start properly I would put it
down to this first before taking it to the BMW people that will
charge you a fortune to just open up the bonnet (from previous main
dealer experiance) Clint Sharp wrote:


OK. Our local garage (not BMW main dealer) has checked all possible issues
and has found nothing! Of course, the engine starts perfectly at the moment.
One thing they noticed was that the fuel filter is new(ish), and wondered if
there was a fault with this or its fitting. How exactly does a fuel filter
work, and what would cause it to sometimes stop the engine from starting?