Audi a4 b8 diagnostic codes

buzzing147

Hi all i purchased a 2008 a4 b8 143, it has only 70,000 miles, previous older was elderly and didnt drive it much, car runs fine but at times it judders for a minute or 2 then back to normal. The glowplug light and the emission control lights have come on, so i got it hooked up to a computer. Was just wondering if anyone knows anything about the following codes that were produced:

P201300 - Throttle actuator circuit high

P211200 - Throttle actuator control system closed

p145F00 - Mass Air Flow in regeneration, operation too high

P067400 - Cyl 4 glowplug circuit

Wondering if this now is a huge job i have to get done, that will cost a lot, or is it something not too expensive? Dont think ill be going to audi to get these things fixed!!

Any advice appreciated

Regards

buzzing147

Think I put this thread in wrong location, don't know how to delete
Was meant to be in motors section

George Dalton

It needs a glow plug and a throttle flap. And if you keep driving it without fixing the faults then it will need a forced regen of the DPF as well.

Jack the Stripper

I would replace the set as oppose to the one blown one.

buzzing147

George Dalton wrote: »

It needs a glow plug and a throttle flap. And if you keep driving it without fixing the faults then it will need a forced regen of the DPF as well.

Cheers george, I'd say it was kept driven by previous owner, an older man, I only bought the car a month ago, going fine but Judders for a minute or 2 after driving for an hour or so.

George Dalton

That judder will be an attempted regen but if the throttle flap is faulty it won't be able to complete the regen properly.

buzzing147

George Dalton wrote: »

That judder will be an attempted regen but if the throttle flap is faulty it won't be able to complete the regen properly.

Cheers for the information, appreciated. Im putting a bottle of fuel cleaner into it tomorrow, dont know if that will help a bit

buzzing147

George, is the throttle flap part of the throttle body or the whole piece? Audi are charging nearly 500e for this part just after ringing them, cheers

George Dalton

It's the whole throttle body. You don't need to buy it from Audi, any motor factor should be able to get you the OEM part which is made by VDO.

buzzing147

Cheers for advice, I was going to get throttle body cleaned this weekend, not sure if that will help it though? Otherwise I'll buy one from a car parts store

George Dalton

Cleaning it is pointless. The problem with them is electrical failure.

crasy dash

buzzing147 wrote: »

George, is the throttle flap part of the throttle body or the whole piece? Audi are charging nearly 500e for this part just after ringing them, cheers

You should be able to get it installed an all for alot less than that had my one done in the a4 3years ago in my local Renault garage.
Think rough cost was about 280ish dont have the bill at hand but that included the diagnostic scan as well.

buzzing147

Car is driving perfect now no juddering, it had a stuck brake caliper. Got a new one put in, and have driven 400 miles since, and the steering wheel shaking has completely gone.

Moanin

buzzing147 wrote: »

Car is driving perfect now no juddering, it had a stuck brake caliper. Got a new one put in, and have driven 400 miles since, and the steering wheel shaking has completely gone.

What about all the error codes that you were getting when you scanned it?

exaisle

Moanin wrote: »

What about all the error codes that you were getting when you scanned it?

Just reset them with VAG-COM...

buzzing147

Yea i cleared the codes, none have came on since, and got a new passenger front caliper, also cleaned the throttle body, it was absolutely covered in black stuff, car has no juddering now, that was caused by the caliper sticking, seems to be driving perfect since.

buzzing147

The cooling fan stayed on earlier for a few minutes after i turned car off, i started car again, and it went off then, is this normal? first time i heard cooling fan staying on after a drive

crasy dash

Ya car was doing a dpf regen when you turned it off.

buzzing147

crasy dash wrote: »

Ya car was doing a dpf regen when you turned it off.

ah ok, so thats normal enough? cheers

crasy dash

Normal enough just keep an eye of it if it is happening fairly regular you might have a problem but by that stage a fault will be logged and eml will probably be on.

What type of mileage are you doing is it mainly town or motorway driving?

buzzing147

crasy dash wrote: »

Normal enough just keep an eye of it if it is happening fairly regular you might have a problem but by that stage a fault will be logged and eml will probably be on.

What type of mileage are you doing is it mainly town or motorway driving?

Car has very low miles only 70,000, i bought it a month or so ago, im not doing huge mileage, main road for 15 mins and into town and back home again kinda miles, thats twice it happened now, turned car off but cooling fan stayed on for a few mins, i ended up both times starting the car up again to see if itd go off, in case it ran the battery

buzzing147

Been 4 weeks or so with no fault lights, but the missions control light came on again today not long after putting diesel in, and flashing glowplug then came on, it went off again, the emissions light went off again after turning off and on the car a few times.

Silane

buzzing147 wrote: »

Been 4 weeks or so with no fault lights, but the missions control light came on again today not long after putting diesel in, and flashing glowplug then came on, it went off again, the emissions light went off again after turning off and on the car a few times.

Is the fuel cap on properly?

buzzing147

Silane wrote: »

Is the fuel cap on properly?

Yea its on tight, cheers for reply.

tossy

The fact it was just after you put diesel in was purely coincidental i would imagine.

buzzing147

tossy wrote: »

The fact it was just after you put diesel in was purely coincidental i would imagine.

Yea I drove for 10 mins after putting diesel in, then went in somewhere, and when I went to restart car the emission control light was on and after driving a few mins the glowplug light was flashing. Both are off now but feel an on and off judder when driving

buzzing147

Flashing glow plug light today and car very jumpy, then got home turned car off and radiator stayed on for about 5 minutes. Anyone any ideas

richardsheil

Yeah, follow advice given to you already

buzzing147

richardsheil wrote: »

Yeah, follow advice given to you already

Got a new glowplug and cleaned throttle body a few weeks ago, car going fine until yesterday, now flashing glowplug and juddering. Doesn't seem to be regenerating

George Dalton

George Dalton wrote: »

It needs a glow plug and a throttle flap. And if you keep driving it without fixing the faults then it will need a forced regen of the DPF as well.

George Dalton wrote: »

That judder will be an attempted regen but if the throttle flap is faulty it won't be able to complete the regen properly.

George Dalton wrote: »

Cleaning it is pointless. The problem with them is electrical failure.

The solution is pretty obvious I would have thought....

buzzing147

George Dalton wrote: »

The solution is pretty obvious I would have thought....

Cheers George should of took you're advice a month ago but instead cleaned the throttle body...there's one near me from a crashed a4 b8, he wants 80euro for the part, is it fine to replace with a second hand part or should I buy one new? Cheers

jca

buzzing147 wrote: »

Cheers George should of took you're advice a month ago but instead cleaned the throttle body...there's one near me from a crashed a4 b8, he wants 80euro for the part, is it fine to replace with a second hand part or should I buy one new? Cheers

Buy a new one and be finished with it. If it was my car that's what I'd do.

Hal1

If it's a metal throttle body and looks ok visually, with the butterfly flap opening easily I'd say yes, if it's plastic buy a new one.

buzzing147

Hal1 wrote: »

If it's a metal throttle body and looks ok visually, with the butterfly flap opening easily I'd say yes, if it's plastic buy a new one.

The one on the car is metal and the flap opened easily, i cleaned it, but its back acting up again, at least i think its that. According to the original error codes, it is that part. Going to buy a new one next week, not gonna drive much, because glowplug light keeps flashing now and afraid of doing damage to dpf

buzzing147

I wonder would it be anything other than a throttle body? Maybe a sensor? Going to get another diagnostic check tomoro cause the flashing glowplug light stays on, just to be 100% before ordering throttle. Was wondering do you need to do body adaption after putting in new one?

crasy dash

Op just read post 30 by george dalton the man is an expert on vw's audi and highly regarded in this forum it is an electrical fault with the flap and you need a glow plug as well.The man took the time to reply and try and help you
His free advice on here will save you money if you listen.

You had a diagnostic scan already done which highlighted the problem you cleaned it it didnt fix your problem as it is an electrical fault dont bother wasting money on a second scan order the part and get it fitted.

It happened my car it took one scan to read the fault and i had the part ordered and fitted yours should be already fixed by now if you had taken the advice given rant over .

buzzing147

crasy dash wrote: »

Op just read post 30 by george dalton the man is an expert on vw's audi and highly regarded in this forum it is an electrical fault with the flap and you need a glow plug as well.The man took the time to reply and try and help you
His free advice on here will save you money if you listen.

You had a diagnostic scan already done which highlighted the problem you cleaned it it didnt fix your problem as it is an electrical fault dont bother wasting money on a second scan order the part and get it fitted.

It happened my car it took one scan to read the fault and i had the part ordered and fitted yours should be already fixed by now if you had taken the advice given rant over .

Cheers for reply, I deserved that rant:) I just wondered about throttle today cause pressed my foot on accelerator for 5 seconds before starting car and heard it moving, so thought electrics might of been OK, yes gonna order part tomoro, I already replaced the glowplug cyl4, it looked fine but put in a new one, thanks

buzzing147

Just wondering, do you have to reset or go to a vag dealer to do adaption, to replace throttle body? or is it just a matter of changing the part?

crasy dash

When I had it done on my car the garage said it had to be programmed but I'm not 100% sure George can help you better than I can

buzzing147

Cheers I'll ask George, I'd be able to put in new one myself, cleaned the old one, but wudnt have a clue about resetting or programming

buzzing147

Just a final question, would it be normal for the car to be driving perfect this past 4 weeks or so, after i got the diagnostic codes and cleaned the throttle body? Should have new throttle by mid week, so finger crossed i wont be posting for a while!

buzzing147

Hi, anybody know if the new throttle body needs to be programmed? Part just arrived, just wondering now if it needs to be put on a computer or is the part just plug in and play

George Dalton

No just fit it and clear the fault codes.

buzzing147

Cheers George, thanks for you're advice, appreciated

buzzing147

Just wondering, I have 1,500 miles done since new throttle body was put on, I could feel about 4 Judders since then, latest one today and radiator stayed on for 5 minutes when I stopped. Checked diagnostics today also, but no faults are coming up. Just wondering if them few judders are normal? Cheers

George Dalton

You will sometimes feel a slight judder when a regen is active, that would also explain the radiator fan staying on.

buzzing147

George Dalton wrote: »

You will sometimes feel a slight judder when a regen is active, that would also explain the radiator fan staying on.

Cheers George, yea its a very light judder on throttle, happened 3-4 times since I put the new part in, but no codes coming up, radiator was on for 5 minutes, this happened before also, maybe I should of kept driving but was at destination so probably disrupted the regen. Do you know how often these cars do a regen?