Engine wobble = misfire?

ibesiano

ibesiano

Member
Sorry to highlight my lack of mechanical knowledge but could anyone advise on how to remedy this?
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Drove home from work - sounds rough.
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Thanks
Video link is free for two days apparently
 
So work colleague has this scanner, but none the wiser. 18043?
000ADEB7-53B4-417D-9180-B38696B32551.jpeg
 
sure it's just that? because that's a missing connection to AC fault code.

Fault codes 18043/P1635. & 1320

Mustang-owner kindly scanned my car and looked at Ross tec for deceptions. But could not find any decription for these two codes. 18043/P1635. & 1320 I was wondering if anyone had come across these before and can tell me what they are. Many thanks in advance. David
www.a2oc.net www.a2oc.net

edit: too early to draw conclusions, but how good is the battery?
 
Get yourself a VAG specific scan tool. VCDS Lite is cheapest, if you have a Windows laptop. Under a tenner for a KKL lead, download is free.
Can be challenging to get working, and in it's free version, very limited, but will give you all fault codes from all controllers.
OBD Eleven is a good alternative, and in it's basic form, under £40, as long as you have an Android phone.
I prefer VCDS, but I'm warming to OBD Eleven. The Bluetooth connectivity, (no cable), and the ease of emailing scan results to yourself are very convenient.
Either way if you have an FSI, a VAG specific scan tool, should be your first purchase, even before you buy the car.
Mac.
 
lavandism said:
sure it's just that? because that's a missing connection to AC fault code.

Fault codes 18043/P1635. & 1320

Mustang-owner kindly scanned my car and looked at Ross tec for deceptions. But could not find any decription for these two codes. 18043/P1635. & 1320 I was wondering if anyone had come across these before and can tell me what they are. Many thanks in advance. David
www.a2oc.net www.a2oc.net

edit: too early to draw conclusions, but how good is the battery?
Click to expand...
I'll get battery checked. Thanks
 
PlasticMac said:
Get yourself a VAG specific scan tool. VCDS Lite is cheapest, if you have a Windows laptop. Under a tenner for a KKL lead, download is free.
Can be challenging to get working, and in it's free version, very limited, but will give you all fault codes from all controllers.
OBD Eleven is a good alternative, and in it's basic form, under £40, as long as you have an Android phone.
I prefer VCDS, but I'm warming to OBD Eleven. The Bluetooth connectivity, (no cable), and the ease of emailing scan results to yourself are very convenient.
Either way if you have an FSI, a VAG specific scan tool, should be your first purchase, even before you buy the car.
Mac.
Click to expand...
I did do this once but the laptop died. I'll see if I can find the lead. Thanks
 
Update. Not found lead yet but service light came on so I got car serviced.
The misfire was looked at swapped coils around plugs etc - still there. Garage said that he suspects that the ethanol in petrol has damaged/rotted the injector seals so may have to take off manifold take out injectors etc etc. None of them wanted to do it... by what I have found on the forum it is somewhat tricky. Shall I try a bottle of injector system clean or is he right?
Thanks
 
As has been said before, you need to have the ECU scanned with a VAG specific scan tool. Ideally, VCDS, using the FSI, (BAD Engine Code), label file. This file is present in the current released version of full VCDS, but not in VCDS Lite. If using VCDS Lite, download the label file from this website. Otherwise, like your mechanic, we're guessing.
Mac.
 
ibesiano said:
Update. Not found lead yet but service light came on so I got car serviced.
The misfire was looked at swapped coils around plugs etc - still there. Garage said that he suspects that the ethanol in petrol has damaged/rotted the injector seals so may have to take off manifold take out injectors etc etc. None of them wanted to do it... by what I have found on the forum it is somewhat tricky. Shall I try a bottle of injector system clean or is he right?
Thanks
Click to expand...
Has the car been run on e10 fuel?
The FSIs are not compatible and must be run on e5.
Though that being said, I don’t know if it could deteriorate the injector seals. I doubt it affects the rubber injector O-rings, (as the 1.4MPIs are compatible with e10, and those have o rings exposed to fuel with no issues) but possibly the ethanol could deteriorate the PTFE injector seals?

With regards to the manifold job, yeah it’s a bit of a pain to do, especially the first time, but not inherently hard. No Idea what garages would think of the task though as I did mine myself.

But as @PlasticMac has said, the first step is definitely a good scan, otherwise you’re just throwing parts and labour at it on a whim.
 
Indi said:
Has the car been run on e10 fuel?
The FSIs are not compatible and must be run on e5.
Though that being said, I don’t know if it could deteriorate the injector seals. I doubt it affects the rubber injector O-rings, (as the 1.4MPIs are compatible with e10, and those have o rings exposed to fuel with no issues) but possibly the ethanol could deteriorate the PTFE injector seals?

With regards to the manifold job, yeah it’s a bit of a pain to do, especially the first time, but not inherently hard. No Idea what garages would think of the task though as I did mine myself.

But as @PlasticMac has said, the first step is definitely a good scan, otherwise you’re just throwing parts and labour at it on a whim.
Click to expand...
PTFE does not get affected by ethanol.
 
lavandism said:
PTFE does not get affected by ethanol.
Click to expand...
Unlikely to be ethanol related then by the sounds of it.

That’s what I would have guessed, I was just trying to think of differing factors between the FSI and 1.4, injectors wise

Mac has suggested before that the reason for the FSIs non compatibility with e10 is likely to be in the exhaust system somewhere, so I think unlikely to cause injector problems.
 
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