Interpreting Engine System Service Required
 

The following message has intermittently appeared on my dashboard "Engine System Service Required" and having paid a Volvo dealer £114 for a 'scan' I am still in the dark as to what is required. I had to insist that the dealer give me a copy of the scan report, although reluctant to do so, which said "possible throttle body fault and software". Not satisfied with "possible..." I have made further enquiries. As the engine light has not illuminated and performance is reduced intermittently, sometimes quite a lot, sometimes not noticeable at all and in all cases with or without dashboard message. Advice sought from technicians range from "check the pipe at the back" ?? to "Never known one of these to require a throttle body" I would appreciate members opinions

What car Adrian ??? I know this is the T5/R section but what Model/Age/Spec would be useful to help yer diagnose the Light/Message ect

Keith

Interpreting Engine System Service Required
 

Sorry Keith, new to the site thought car model would appear automatically. Its a V70 T5 late 2000

Thanks fer the Info Adrian ... OK V70 ....the message is basically telling you something is "out of tolerance".. could be a number of things but it is MOST likely to be a MAF sensor problem.....

you say you've got "Reduced Performance" that to me points to Either less fuel or less air getting into the engine (I'm a BASIC old style "Home Mech"!!)


to follow my train of thought you have two options

1. A Dirty MAF Sensor

2. A dirty Fuel Filter

the Above in essence is what yer "Technicians" have told you "Throttle Body fault" .. so what goes into a Throttle body ... FUEL & AIR !!! .. which brings us right back to either a DIRTY MAF sensor or a DIRTY Fuel Filter ...

Check yer air Filter first off .. it MAY be Partially Blocked with CRUD (in fact take the Air Filter out altogether & take it fer a Blast about & see how it runs .if its STILL the same get the MAF cleaned .....if that don't work Clean the Fuel Filter ...

Mechanics these days ARE NOT "Mechanics" they are "PART REPLACERS" Change this & Change that ... Eventually they will "Replace" the part thats Faulty ... but "Faulty" is only a "Term" it may just need a clean ....

Keith

Interpreting Engine System Service Required
 

Thanks Keith, I'll give that a whirl tomorrow and see how she performs. Love this car, had it from 36000-132000 miles and don't want to loose it!

Engine System Service Required
 

Hi Keith Tried your suggestion of removing the air filter, gave it a brush and took a vacuum to the housing. Before replacing the filter went for a spin, covered about 6 miles and switched the engine off three times. The dashboard message remained on at all times. As this has proved to be an intermittant fault I am not confident that this cured the problem although it kinda seemed more responsive and certainly no vibration when opening up the throttle. Is cleaning or replacing the air sensor the next option? Torx screw drivers I have but not with a hollow centre to accommodate the 'dimple'. Thanks very much for your advice

Hi Adrian,
I had this message appear on my Volvo. The Volvo service centre dignosed my oil level was slightly over the full mark on the dipstic?
I did not have any issues with limp mode or anything like that.
All the best

Engine system service required dead end
 

It seems like I might have to scrap the T5!
Having been told by three separate service centres(2 main dealers and 1 independent) that it definitely needed a new throttle body I duly coughed up the £450 and had it changed. No dash board message any more but vibration start at 65mph. Took it to the independent specialist who diagnosed misshapen rear tyres which were changed. Still got the vibration at 75mph when driving alone. Vibration worse going up hill or with two people on board. Four adults and three rug rats on board and the vibration kicks in at 35mph. Volvo specialist now thinks it's a transmission problem as there is play in the drive shafts and differential. As the initial diagnosis from this 'specialist' was bad tyres Ive lost all confidence in his ability to get it right. My last Volvo, a 760GLE died of an auto box failure. Unless anyone has abetted idea?

Engine System Service Required
 

I too have had this message pop up along with 'Engine Service Required, SRS-Airbag Service required and Alarm Service required'
I'm not bothered abuot those other alerts as the beast (V70 D5 195,000miles) is really not worth spending any more money on.
The Engine System Service required has brought with it a much reduced power output. No more that 2000 revs and limited to 60mph, which ould be the equivalent of the milp home mode referenced earlier.

The multiple comments wrt oil level too high could be spot on. I serviced the car on Sunday (today is Wednesday) and have never had this issue before.
I will reduce the oil level to minimum to reset the issue then top up to half way as recommended and feedback to the thread whether this has fixed the issue or not.
K

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