Vauxhall Astra feels flat, surges as accelerated and drinking petrol

If you have problems with a new , week old car , take it back for checking .

I am going to take it back. I just wondered if anyone else had similar issues or if this was the norm for this model/ version

If your car has a multi function computer as most have nowadays , what mpg is it showing ?

Hmmm if it had a display showing mpg and this model doesn't I would know exactly what the mpg was...........according to the computer. The fuel consumption is mentioned just to give a fuller picture of the cars symptoms ! I was hoping that someone who owned one of these cars could give me some feedback on what theirs drives like, uses fuel like, surges like .

Many thanks in advance.

I have a family member who bought one of the top end spec models about a year , eighteen months ago .Now I recollect she did mention it wasn't the fastest of the mark at that time when brand spanking new .Whether it eased off and improved with more miles on the clock I couldnt say but she is not the type to let any faults go unchecked .Maybe she got used to it being " underpowered " Never heard of her complaining on mpg or surging though and she drives fast .

Hi,
On 2nd March 2014 I purchased a brand new petrol Vauxhall Limited Edition Astra 1.6i 16V.
In the first week of having the car I noticed that the fuel consumption was very poor and was nowhere near meeting the mpg figures predicted by Vauxhall.
I called the garage and booked the car in for examination on Friday 4th April 2014.
On this day I took the car to the garage and a test was performed on the vehicle and I was told by the Service Advisor that nothing could be found wrong with the car. I was also told that with petrol consumption problems it was not possible to investigate further until the mileage on the car had reached 5,000 and all the parts had worn in. I told him that this was not acceptable.
I then contacted Vauxhall Customer Care who also told me that there was nothing that could be done until my car had reached 5,000 miles.
I, like yourself, find the car very sluggish, especially when going up not too challenging hills and having to go down through the gears, to keep up the momentum. This generally causes a tailback of other vehicles, which in turn causes me great embarrassment.
I have recorded the mpg for my the following journeys
Extra urban 41 mpg (75% of predicted figure above)
Extra urban 38 mpg (70%)
Extra urban 39 mpg (72%) - This is the latest calculation where the mileage on my car now stands at 2,400 miles.
The worst recorded performance was 26 mpg which was calculated over 3 days where 85 miles were covered. This included an extra urban trip of 60 miles, all motorway from Bristol to Newport and back and 25 miles travelling around Bristol on a urban to combined cycle. Being meagre by using the combined figure of 44.1 my mpg recorded was still only 60% of this figure which is appalling.
I am now wondering having seen your problem whether this batch of vehicles have a common fault. I will be asking Motor Codes/Trading Standards to investigate.