Hi

 

Sorry if this is solved elsewhere but I cant find it!!

I'm a bit a newbie at this car thing - haven't done much serious work since I changed a clutch on an old 1100 many years ago - so new cars leave me slightly baffled 'cos all the bits look the same!!

 

Anyway I have the classic limp home problem and was going to try the Mr Muscle.treatment.

 

The first problem was actually finding the components on my car but eventually I found the picture in this thread http://www.briskoda.net/forums/topic/228221-egr-valve-pls-help/ showing the EGR valve which looks a doddle to get off.

 

So I presume I take the EGR off and can then clean it if necessary.

 

But which pipe do I put the Mr Muscle tube into? - the silvery one on the right (above the top RH corner of the red box and underneath the flat silvery bit) I presume.

 

I presume Mr Muscle is OK on the BKD engine?

 

TFAI

 

 

Hhhmmm - I'm beginning to have second thoughts about this. There seem to be three different types of screw / Allen bolt a couple of which are pretty inaccessible

 

 

I gather there are 5 bolts

- 2 at the bottom, the one visible and his chum round the other side.

- 3 at the top the one arrowed, the one visible on the RH edge and a third much longer one round the back

and then a third type if I need to take off the silver pipe (which I may have to do to get at one of the EGR bolts.

I have a 5mm Allen key but where to I get the rest from and what are the specs?

 

More like a bl**dy jigsaw than an engine.

 

Anyone actually done this?

How hard is it really?

Edited 24 April, 201412 yr by RIncewindwiz

Perhaps I'm getting the wrong end of the stick here, but do you mean limp home mode due to the turbo vanes sticking and overboosting? If so the Mr Muscle needs to go directly into the turbo on the exhaust side, down the back of the engine.

 

Although you can apparently get the Mr Muscle into a 1.9 engine via the EGR pipe its not recommended to do it this way on a 2.0 BKD engine as the Mr Muscle may sit in the EGR cooler and get sucked back into the engine.

Yeah, your access should be through the flange that the EGR pipe connects to the exhaust manifold.

If you really aren't that confident at taking the EGR and ASV off (which is pretty simple) I wouldn't consider spraying anything anywhere in all honesty.

I've been considering this as well on my BKD engine, but unless I'm 100% that I have the right tools and know exactly where to squirt any cleaner I'm leaving it alone.

What I did do is get the engine up to temperature and gradually build up the revs until it's running at 4k RPM for a couple of minutes.

Did this a few times over a month or so and it seems to have cleaned mine enough to not give me any issues with limp mode anymore.

Think I may have caught mine in the early stages of the problem so may have just been lucky.

Has saved my fretting in the engine bay though...

This might be of help to locate the blower on the BKD:

 

http://workshop-manuals.com/skoda/octavia-mk2/drive_unit/engine_2.0/103_kw_tdi_pd_2.0/100_kw_tdi_pd/exhaust_turbocharger_g-charger/charge-air_system_with_exhaust_gas_turbocharger_part_2/removing_and_installing_exhaust_gas_turbocharger_for_engine_with_engine_identification_characters_bkd_azv/

 

Not in the easiest place to get to on the BKD.

Good How To Guide

 

http://uk-mkivs.net/topic/227705-mk5-bkd-turbo-clean-my-way/

I like the look of the 3bar boost sensor, my limp mode problems started soon after removing my CAT and not altering the remap. I wonder if the turbo is achieving higher boost without the blockage of the CAT ??   ( of coarse, I could be completely wrong)

Nick and k. young: Thanks for that. I have to say it didn't really look the right sort of pipe hence the question.

 

88rsr: Fair comment but really my only concern was access to the various nuts/allen bolts and the range of tools needed to tackle them.

 

KBPhoto: Interesting. I may give it a go. I only really get the problem with sustained motorway driving - its good as gold when cold and around town - so I'm not hopeful a couple of minutes at 4k will help. Costs nothing to try.

 

Plantman: Excellent How to guide. Thanks. I dont think I have enough kit to tackle that - ramps and axle stands went AWOL in a house move a few years ago.

 

Thanks to all those that commented.  I think I'll try one of the additive cleaners and if that fails, speak to the garage.

Edited 25 April, 201412 yr by RIncewindwiz

If you do take that lot apart, then be VERY careful to evenly tighten up the various securing bolts when you put it back together - I was not, and I only found out that out when trying to trace an apparent near-by oil leak, which turned out to actually be diesel blowing out of one of the flanges because 2 of the 3 lower bolts had loosened and fallen out! A few more miles and the thing would have fallen apart :think:  .

 

OTOH the EGR valve was really crudded up inside - to the extent that the valve plunger was actually stuck closed. Took me about 2hrs to carefully clean all that crud out with soft metal/plastic tools, a lot of carb cleaner and an old toothbrush! The low speed running improved a lot after that, so the job was worth it.