I found an old tube of silicone dielectric grease by chance in my toolshed. Stuff I had bought about 15 years ago when I was working in Canada.

I had wanted to use it on the MAF connector to see if there was any difference in smoothness as suggested in our thread :http://www.briskoda.net/forums/maintenance-performance/cage-mod-anyone-tried/58457/?highlight=dielectric+MAF

I looked at the parent TDI club thread and it seemed a good idea. Stumbling mystery solved. MAF! - TDIClub Forums

I used silicone dielectric grease (Halfords carry it in the UK apparently) - popped open the MAF connection by pressing on the tab underneath and put a little dab in each of the female terminal ends. That's all that was involved.

Anyway - I really think that apart from constant smoothness at low rpms now - there seems to be less smoke output. It used to smoke when cold, no more. Even all-out booting it - less smoky.

No change in weather here or any other confounding factor I can think about (de-cat was done a good 2 weeks ago).

I feel there is a definite improvement to be had - silicone dielectric grease helps make connections more efficient, so no way to mess up, unless you use silicone sealant which is VERY different from silicone dielectric grease.

If anyone else has any comments or has tried this, it would be good to have feedback.

Cheers:thumbup:

Bas

which connections exactly did you put it on?

might try it on my 1.8T

silicone dielectric grease helps make connections more efficient

Curious. :confused: How does stuffing liquid insulator into an electrical connection make it more efficient?

1- on the MAF sensor plug (the one sticking out of the airhose after the airbox - above the brake fluid reservoir)

2- see below

Langa Letter: Rust Never Sleeps: How To Deal With Moisture And Corrosion In Your PC - Hardware News by InformationWeek

Quite the thread on TDI club, eh?

Bas

we use this sort of grease at work on the connectors on Fords especially after they have had some water ingress in them

I packed my MAF with silicone grease about 12 months ago after reading this thread:

Stumbling mystery solved. MAF! - TDIClub Forums

I noticed the difference right away, much smoother etc. I know that the grease can harden over time so I'll probably clean it out and renew it within the next few weeks.

oh, and I forgot to mention - power seems to be smoother throughout the rev band:thumbup:

Some people really raving about this "mod" on TDI club -

there's pics to show how easy it is on: Stumbling mystery solved. MAF! - Page 9 - TDIClub Forums

Cheers:thumbup:

Bas

i think the silison grease acts as a kind of damper which slows the reactions of the sensor a little.

you only put it on the comnnections where the plug goes onto the maf housing not tha actual sensor.

i seem to remember reading a tech bulletin about sealants actaully on the sensor ages ago!

is this just normal silicone grease we are talking about here with nothing special added to it. The stuff you can buy it in hardware shops and builders merchants to grease tap spindles and lubricate rubber o rings etc.

is this just normal silicone grease we are talking about here with nothing special added to it. The stuff you can buy it in hardware shops and builders merchants to grease tap spindles and lubricate rubber o rings etc.

er no , it is silicone electrical contact grease , thats what it says on the tube of Ford stuff i've got at work , it works by making a better electrical contact between the connectors and also due to no air being able to get at the contacts in the connector there will no corrosion of the contacts HTH

interesting read, might be worth a go. how much is this silicone electrical contact grease :confused:

Halfords and Maplins should carry it IIRC. If you find it to be magic like I did, it might be a good idea to carry along a tube to Briskoda meets - to benefit other Briskodians!

After the grease - my Fabia is deffo smoother at idle and low revs, less smoke and smoother power.

Cheap, safe and DIY - truly a great little "mod"!

Cheers

Bas

anyone tried this on a petrol based maf?

Silicon Dielectric Grease - Smoother running, more responsive & less smokey TDI!! - SEAT Cupra.net

Rather large thread over on Cupranet on this too.

Have done this and maybe a touch smoother, but best benefit was less smoke although is this a coincidence with the colder air temps?

placebo effect?

Have done thid to all of ours since using the stuff @ work.

anyone tried this on a petrol based maf?

Im wondering that too ^^^^

Is it ok to do on my 1.4 16v Petrol Furby? If so guess where Ill be going tomorrow!

where are you getting it from?? i looked about and couldn't find it anywhere and in fact only one place knew what i was talking about :confused:

I hear that Halfords carry it/ maybe Maplins - otherwise search on the internet: 'Silicon Dielectric Grease'

My car started smoking again about 3 weeks after the dab of grease - I opened up the connector and PACKED it. Again - less smoke, temps at the time were about the same.

Not had the problem again since

Cheers

Bas

Dieletric grease is reccomended for insulating a pc cpu socket when using sub-zero cooling, myself and many others have used vaseline with just as much success so I would have thought it would be just as good for the maf....

I hear that Halfords carry it/ maybe Maplins - otherwise search on the internet: 'Silicon Dielectric Grease'

My car started smoking again about 3 weeks after the dab of grease - I opened up the connector and PACKED it. Again - less smoke, temps at the time were about the same.

Not had the problem again since

Cheers

Bas

Like I said above though, is this ok to do on Petrol cars? :confused:

So it does seem to be the CPU/heatsink bonding stuff then? I did wonder! got some at home. Great!

Can't see any reason why it wouldn't be fine with a petrol engined car. It's all about improving electrical connections, nowt to do with what fuel's used as far as I can see...:confused:

No it's not the same as thermal paste that is applied between cpu and hsf, that is quite often capacitve and conductive, dielectric or vaseline are used use to prevent condensation and in turn corrosion by eliminating any pockets of air between a hot and a cold surface.