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Loss Of Power And Anti Skid Warning

15K views 1 reply 2 participants last post by  moschops  
#1 ·
I have had a worrying and potentially dangerous fault with
my V50 1.6 diesal (2008, 4,000 miles).

On two occasions while driving the car on a motorway/ dual
carriage way at 60-70mph, the engine has lost all power and
the car slows to a crawl, on both occasions It has been extremely
dangerous and only by luck have we avoided being hit by the car/truck
behind.

When this happens the Anti-skid warning light comes on and a message
reads urgent service required. Stopping and re-starting the engine resets
it but only for a matter of minutes before the same thing happens.

We took the car to a Volvo garrage last month and after 2 days the car was
returned, initially we received no paperwork and only after requesting this
was a copy of the invoice sent which says 'checked dtcs ecm 2500 low pressure
checked fuel lines and connectors erased dtcs and road tested-ok'

This fault has now recurred today and again was potetially very dangerous
at 70mph on a by-pass with no hard shoulder-the car has been now been taken
to the local Volvo garrage.

Anyone else had this problem?, and considering the car is less than 12months old
and has only done 4,000 should i request a replacement? (it is a private lease car).

Both myself and my wife have lost confidence in a car we initially chose
for safety as we have a baby.

Any help suggestions gratefully received,
 
#2 ·
I had this same problem (04 Diesel V50), with loss of power (the engine mangement goes into 'get home' mode) also warnings of brake failure and power steering needing service - last time at 70mph on a major A road - not good!

It always cleared after stopping and starting until one day when nothing would reset it. Called out the AA and they came out. Engineer couldn't find anything wrong - so he spoke to a colleague who had a V50 AND had experienced the same problem, he had taken it into the AA workshops to investigate and gave a fix, so top marks to the AA for this one.

The fix was this: there are 2 fuse/connector boxes in the V50 - one under the bonnet, one at the top rear of the passenger footwell. The connectors in the footwell box were all unplugged, checked and re-seated. It seems that these can vibrate and get a bit loose (I'm a programmer & electrical engineer, so this is a personal analysis - I'm not volvo related or a car mechanic, so use this information at your own risk) so it looks like the engine management software starts to receive spikes/glitched signals through the connections which it interprets as fault signals so the software get triggered and handles it as if it was a real fault. After having the connectors re-seated I've had no reoccurance of the problem for the past 9 months.