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Check cat light on Volkswagen

  • 05-09-2015 8:34pm
    #1
    Steve
    Registered Users, Registered Users 2 Posts: 22,584 ✭✭✭✭


    So, a fiend of mine bought a new (used) VW with a 1.4 TSi 160hp 2012. Got it home after diving 50 ish km and the cat light came on.

    Will be calling them first thing Monday, simi garage + warranty etc, but was wondering if this could be a symptom of something sinister? what are the right questions to ask?

    Are there innocent reasons this would happen?


Comments

  • #2
    jimgoose
    Registered Users, Registered Users 2 Posts: 20,193 ✭✭✭✭jimgoose


    Do you mean the MIL, a.k.a. the "Check Engine" light?


  • #3
    juke
    Registered Users, Registered Users 2 Posts: 1,673 ✭✭✭juke


    He doesn't, I think - yellow engine light, manual says 'cat conv fault'


  • #4
    jimgoose
    Registered Users, Registered Users 2 Posts: 20,193 ✭✭✭✭jimgoose


    juke wrote: »
    He doesn't, I think - yellow engine light, manual says 'cat conv fault'

    Right, well obviously it has a downstrean O2. I suppose it's either that or the cat, see what garage diags say.


  • #5
    Steve
    Registered Users, Registered Users 2 Posts: 22,584 ✭✭✭✭Steve


    It's this one:
    http://www.volkswagen.co.uk/owners/warning-light/emissions-control-lamp

    Will have to see what the garage says.


  • #6
    jimgoose
    Registered Users, Registered Users 2 Posts: 20,193 ✭✭✭✭jimgoose


    Steve wrote: »
    It's this one:
    http://www.volkswagen.co.uk/owners/warning-light/emissions-control-lamp

    Will have to see what the garage says.

    That's the "Check Engine" light. Every car has one, and a good assortment of things can flip it on.


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  • #7
    Steve
    Registered Users, Registered Users 2 Posts: 22,584 ✭✭✭✭Steve


    From what the rest of the internet says, it's not a general 'check engine', it's specific to the emission control system.

    So, the dealer said "it happens sometimes when they've had a car idle on the forecourt for a while.. take it for a drive and it should go away". It did.

    mmm.


  • #8
    Eric Cartman
    Registered Users, Registered Users 2 Posts: 26,280 ✭✭✭✭Eric Cartman


    jimgoose wrote: »
    Do you mean the MIL, a.k.a. the "Check Engine" light?

    Volkswagen call it the "engine is on" light


  • #9
    316
    Closed Accounts Posts: 243 ✭✭316


    Steve wrote: »
    From what the rest of the internet says, it's not a general 'check engine', it's specific to the emission control system.

    Don't be believing what the rest of the internet tells you at all.


  • #10
    jimgoose
    Registered Users, Registered Users 2 Posts: 20,193 ✭✭✭✭jimgoose


    Steve wrote: »
    From what the rest of the internet says, it's not a general 'check engine', it's specific to the emission control system...

    I know exactly what it is. :)


  • #11
    allthedoyles
    Registered Users, Registered Users 2 Posts: 6,893 ✭✭✭allthedoyles


    If the car is been driven a lot with low petrol , especially if the yellow light is consistently on , this can cause a cat conv fault .


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  • #12
    316
    Closed Accounts Posts: 243 ✭✭316


    Is she not sucking the juice from the same spot all the time regardless of how much is in the tank?


  • #13
    Steve
    Registered Users, Registered Users 2 Posts: 22,584 ✭✭✭✭Steve


    jimgoose wrote: »
    I know exactly what it is. :)

    Really? you know more than what VW says in their documentation?? and what a trained tech told me?

    I'm enthralled, please do tell!


  • #14
    jimgoose
    Registered Users, Registered Users 2 Posts: 20,193 ✭✭✭✭jimgoose


    Steve wrote: »
    Really? you know more than what VW says in their documentation?? and what a trained tech told me?

    I'm enthralled, please do tell!

    Did I say that??


  • #15
    Steve
    Registered Users, Registered Users 2 Posts: 22,584 ✭✭✭✭Steve


    jimgoose wrote: »
    That's the "Check Engine" light. Every car has one, and a good assortment of things can flip it on.
    jimgoose wrote: »
    I know exactly what it is. :)
    jimgoose wrote: »
    Did I say that??

    Yep.

    :)


  • #16
    316
    Closed Accounts Posts: 243 ✭✭316


    You have been served jimgoose biy.


  • #17
    jimgoose
    Registered Users, Registered Users 2 Posts: 20,193 ✭✭✭✭jimgoose


    Steve wrote: »
    Yep.

    :)

    Have a read about OBD-II and don't be trying to pick nonsense smartarse arguments with people who are trying to help you. :)


  • #18
    jimgoose
    Registered Users, Registered Users 2 Posts: 20,193 ✭✭✭✭jimgoose


    316 wrote: »
    You have been served jimgoose biy.

    Have I fcuk, sham. :D


  • #19
    Steve
    Registered Users, Registered Users 2 Posts: 22,584 ✭✭✭✭Steve


    jimgoose wrote: »
    Have a read about OBD-II and don't be trying to pick nonsense smartarse arguments with people who are trying to help you. :)

    My apologies, I wasn't trying to be smart and I appreciate the help. It's hard to gauge who is genuine and who is taking the mick in this forum sometime.


  • #20
    jimgoose
    Registered Users, Registered Users 2 Posts: 20,193 ✭✭✭✭jimgoose


    Steve wrote: »
    My apologies, I wasn't trying to be smart and I appreciate the help. It's hard to gauge who is genuine and who is taking the mick in this forum sometime.

    That's alright. That amber light is commonly known as the "Check Engine" light, and it's official monicker is the Maintenence Indicator Lamp. It is set when a monitored fault condition occurs in the engine management system and it is true that it is largely concerned with emissions control, but to say it means a "Cat conv" issue specifically is at best highly misleading and I expect that's what VW tell civilians. :)

    That system monitors a whole clatter of stuff - have a Google for OBD-Ii core powertrain DTCs" to get a flavour.


  • #21
    R.O.R
    Registered Users, Registered Users 2 Posts: 12,712 ✭✭✭✭R.O.R


    Petrol VAG with an EML on? First guess would be either a coil has gone or is about to go.

    Not sure if its common on the 1.4T, but it's very common on the older petrol engines.

    Can happen at any time and is a cheap and easy fix, so hopefully it's just that.


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