MPG for V70D

andre · Dec 15th, 2012, 22:15

Hi, I have changed my 2002 V70 for a 2008 V70 2.4D, nice car, however: I'm a bit disappointing with the MPG. my old V70 gave about 40 mpg. the new one is giving 32 mpg. I've not changed my driving habits, in fact I tend to take it much easier, Is the mpg about right for this model & is there any trickery that can be done to the engine management system to improve the MPH.
Andre'

N11BOT · Apr 11th, 2013, 15:44

This is the fact with these Third generation (2007–present) V/XC70's - they mop-up fuel way beyond the previous model. I have a 2008 XC70 D5 185bhp auto 74,500mls and a late 2009 V70 SE D5 205bhp auto 68,000mls. The XC70 is averaging 27mpg the V70 32mpg. I had a 2005 V70 D5 AWD before which gave 35mpg plus.

The XC70 has just been at the local Volvo specialist having suffered a near-complete loss of power. The issue was detected to be a fault with the EGR valve (Exhaust Gas Recycling). My service guys wanted to replace the valve at 2Hrs labour and £240 for the volvo part. I did not accept this was a correct analysis of the issue having learnt how gunked-up this valve's feed pipes become and started to have a bit of a ring round to find-out if there was some bod who actually KNEW and UNDERSTOOD this issue. I think I know as much as anyone I could find!

In the end my local specialists replaced the EGR control unit because they were told this was potentially the cause of the issue and they cleaned-out a load of tar-like crud from the system. If the EGR control unit was actually faulty we will never know but the car drives like a good-one now - sharper than ever since I purchased it used at 48,000mls.

My V70 is a moody old cow. After I had the car for a year or so from new it started to suffer a loss of power and felt like it was dragging an anchor intermittently. The main agent could not detect the issue. Even when it was not seriously failing it still intermittently - for days on end - felt lumpy on the throttle, stodgy, unresponsive.

Of cause the main agent could not advise what the issue was because there was no fault codes and they generally inferred I was suffering from an over-active imagination. But as it happens I have been involved in the the business of new and used cars since 1977 and I know 100% when a car is not running right.

Eventually the car failed and staggered to the main agent where they replaced some exhaust sensor and returned it running OK. But ever since I have periods of intermittent lack of responsiveness and where the MPG goes from average of 32mpg to 28mpg - they it suddenly runs fine when it starts-up or even when out on the road and keeps good for weeks and weeks. The dealers still look at me as if I am a bit of a nut case.

When I first took delivery of the car - new - for about 10,000 it returned miles 36mpg and even better if I tickled it along.

I am in no doubt. These cars have problems and I have not found anybody who can really give a meaningful, convincing answer to what needs to be done to keep them running right. They are so technical the service department staff are out of their depth. I suspect they need the whole exhaust/emission system dismantling and cleaning out of residues at every service. I fancy some clever types need to workout how to blank-off and disable the EGR system and perhaps give the Diesel particulate filter DPF the heave-ho too.

N11BOT · Apr 11th, 2013, 19:19

BTW - I think this item is in the wrong section for a matter such as this topic?

Dec 15th, 2012, 22:15	#1
andre New Member Last Online: Jun 28th, 2017 21:47 Join Date: Apr 2006 Location: worlington	MPG for V70D Hi, I have changed my 2002 V70 for a 2008 V70 2.4D, nice car, however: I'm a bit disappointing with the MPG. my old V70 gave about 40 mpg. the new one is giving 32 mpg. I've not changed my driving habits, in fact I tend to take it much easier, Is the mpg about right for this model & is there any trickery that can be done to the engine management system to improve the MPH. Andre'

Apr 11th, 2013, 15:44	#2
N11BOT Junior Member Last Online: Jul 18th, 2014 13:41 Join Date: Apr 2013 Location: Wellingborough	I have two thirsty dogs This is the fact with these Third generation (2007–present) V/XC70's - they mop-up fuel way beyond the previous model. I have a 2008 XC70 D5 185bhp auto 74,500mls and a late 2009 V70 SE D5 205bhp auto 68,000mls. The XC70 is averaging 27mpg the V70 32mpg. I had a 2005 V70 D5 AWD before which gave 35mpg plus. The XC70 has just been at the local Volvo specialist having suffered a near-complete loss of power. The issue was detected to be a fault with the EGR valve (Exhaust Gas Recycling). My service guys wanted to replace the valve at 2Hrs labour and £240 for the volvo part. I did not accept this was a correct analysis of the issue having learnt how gunked-up this valve's feed pipes become and started to have a bit of a ring round to find-out if there was some bod who actually KNEW and UNDERSTOOD this issue. I think I know as much as anyone I could find! In the end my local specialists replaced the EGR control unit because they were told this was potentially the cause of the issue and they cleaned-out a load of tar-like crud from the system. If the EGR control unit was actually faulty we will never know but the car drives like a good-one now - sharper than ever since I purchased it used at 48,000mls. My V70 is a moody old cow. After I had the car for a year or so from new it started to suffer a loss of power and felt like it was dragging an anchor intermittently. The main agent could not detect the issue. Even when it was not seriously failing it still intermittently - for days on end - felt lumpy on the throttle, stodgy, unresponsive. Of cause the main agent could not advise what the issue was because there was no fault codes and they generally inferred I was suffering from an over-active imagination. But as it happens I have been involved in the the business of new and used cars since 1977 and I know 100% when a car is not running right. Eventually the car failed and staggered to the main agent where they replaced some exhaust sensor and returned it running OK. But ever since I have periods of intermittent lack of responsiveness and where the MPG goes from average of 32mpg to 28mpg - they it suddenly runs fine when it starts-up or even when out on the road and keeps good for weeks and weeks. The dealers still look at me as if I am a bit of a nut case. When I first took delivery of the car - new - for about 10,000 it returned miles 36mpg and even better if I tickled it along. I am in no doubt. These cars have problems and I have not found anybody who can really give a meaningful, convincing answer to what needs to be done to keep them running right. They are so technical the service department staff are out of their depth. I suspect they need the whole exhaust/emission system dismantling and cleaning out of residues at every service. I fancy some clever types need to workout how to blank-off and disable the EGR system and perhaps give the Diesel particulate filter DPF the heave-ho too. Last edited by N11BOT; Apr 11th, 2013 at 15:51.

Apr 11th, 2013, 19:19	#3
N11BOT Junior Member Last Online: Jul 18th, 2014 13:41 Join Date: Apr 2013 Location: Wellingborough	BTW - I think this item is in the wrong section for a matter such as this topic?

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