V70 2.5 TDi Sluggish, Help please

JohnBean · Feb 3rd, 2014, 11:39

Hi, owned a 1999 V70 2.5 tdi ( 5 cyl audi engine I believe) Basically it has an intermittent problem of being very sluggish, more on small inclines on the motorway. The other time I notice it the most is coming home from work. I work in Cirencester but live in Wales, so on the way home I have to stop for the dreaded Severn bridge tolls. The car normally runs fine for the hour it takes to get to the tolls but then after I've stopped and payed and I go to give it abit of juice out the other side it's extremely sluggish.
It'll rev all the way up but it takes a long time until you get up to 5th and it won't really pull over 65/70mph. It almost seems like the turbo's not there or working, almost as if after the constant drive when I stop something is sticking open so when I pull away again the turbo isn't building up any pressure? This is just a guess of mine but it does happen every time.
Any further information, help or solution to this would be greatly appreciated, it's just becoming very frustrating and dangerous wen it comes to overtaking and what not.
Thanks for your time people
John

martin_r_smith · Feb 3rd, 2014, 17:40

Wastegate could be a little sticky but unlikely. Sounds more maf or boost leak related to me. Is it smokey when you try and boot it? It could be the boost control valve.

Can you get fault codes read?

martin_r_smith · Feb 3rd, 2014, 17:43

Also john I work just outside cirencester so I could read codes for you if needed.

artiedtke · Feb 3rd, 2014, 20:36

I vote for the airmass meter.

martin_r_smith · Feb 3rd, 2014, 20:50

I do have a spare he could try too!

JohnBean · Feb 3rd, 2014, 23:07

[QUOTE=martin_r_smith;1574397]Wastegate could be a little sticky but unlikely. Sounds more maf or boost leak related to me. Is it smokey when you try and boot it? It could be the boost control valve.

Can you get fault codes read?[/QUOTE

No, no smoke. I only get a small puff on a cold start but it is a diesel with 270k on the clock so it's sort of expected. I've arranged to get plugged in tomorrow by a friend. I appreciate the offers though, this is my week off from Cirencester aswell, typical really haha.
I had a quick look on the Audi A6 forum and alot of people have mentioned maf problems but nothing conclusive really. I'll keep you posted though if any break through's are made.
Thanks for your help

Feb 3rd, 2014, 11:39	#1
JohnBean '99 Volvo V70 2.5 TDi Last Online: Jan 1st, 2016 15:54 Join Date: Feb 2014 Location: Newport	V70 2.5 TDi Sluggish, Help please Hi, owned a 1999 V70 2.5 tdi ( 5 cyl audi engine I believe) Basically it has an intermittent problem of being very sluggish, more on small inclines on the motorway. The other time I notice it the most is coming home from work. I work in Cirencester but live in Wales, so on the way home I have to stop for the dreaded Severn bridge tolls. The car normally runs fine for the hour it takes to get to the tolls but then after I've stopped and payed and I go to give it abit of juice out the other side it's extremely sluggish. It'll rev all the way up but it takes a long time until you get up to 5th and it won't really pull over 65/70mph. It almost seems like the turbo's not there or working, almost as if after the constant drive when I stop something is sticking open so when I pull away again the turbo isn't building up any pressure? This is just a guess of mine but it does happen every time. Any further information, help or solution to this would be greatly appreciated, it's just becoming very frustrating and dangerous wen it comes to overtaking and what not. Thanks for your time people John

Feb 3rd, 2014, 17:40	#2
martin_r_smith Premier Member Last Online: May 10th, 2022 21:01 Join Date: May 2009 Location: Wiltshire	Wastegate could be a little sticky but unlikely. Sounds more maf or boost leak related to me. Is it smokey when you try and boot it? It could be the boost control valve. Can you get fault codes read? __________________ 1983 244

Feb 3rd, 2014, 17:43	#3
martin_r_smith Premier Member Last Online: May 10th, 2022 21:01 Join Date: May 2009 Location: Wiltshire	Also john I work just outside cirencester so I could read codes for you if needed. __________________ 1983 244

Feb 3rd, 2014, 20:36	#4
artiedtke Just one more thing... Last Online: Jul 10th, 2020 14:44 Join Date: Dec 2008 Location: North Wales	I vote for the airmass meter. __________________ '98 V40 2.0T B4204T - died... '96 855 2.5 TDI D5252T - 255,000 miles "Diesel without turbo is like a woman without boobs... sure you can drive it, but there's always something missing."

Feb 3rd, 2014, 20:50	#5
martin_r_smith Premier Member Last Online: May 10th, 2022 21:01 Join Date: May 2009 Location: Wiltshire	I do have a spare he could try too! __________________ 1983 244

Feb 3rd, 2014, 23:07	#6
JohnBean '99 Volvo V70 2.5 TDi Last Online: Jan 1st, 2016 15:54 Join Date: Feb 2014 Location: Newport	[QUOTE=martin_r_smith;1574397]Wastegate could be a little sticky but unlikely. Sounds more maf or boost leak related to me. Is it smokey when you try and boot it? It could be the boost control valve. Can you get fault codes read?[/QUOTE No, no smoke. I only get a small puff on a cold start but it is a diesel with 270k on the clock so it's sort of expected. I've arranged to get plugged in tomorrow by a friend. I appreciate the offers though, this is my week off from Cirencester aswell, typical really haha. I had a quick look on the Audi A6 forum and alot of people have mentioned maf problems but nothing conclusive really. I'll keep you posted though if any break through's are made. Thanks for your help

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)