Just cleaned my fuel sensor with WD40 then put electrical grease on to protect it and I had a few problems. I remember reading that some people clean their MAF sensor but just wondering how as i wana see if it makes a difference as my engine feels a bit rough after 52000 miles!! thanks people

Edited 12 August, 200916 yr by wozza-vrs

I wouldn't use it on electrical connections personally, isn't it corrosive in the long run... once the lube element has gone? Could be wrong.

Pop down maplins for some contact cleaner, maybe a better idea?

I'm sure someone else will be along with more advice though

No, don't do it!

WD40 will leave an oily deposit on the sensor and stop it from working properly.

Just replace it, they're so easy to damage or break whilst cleaning. There are a few people here including Vrstu who think that the MAF sensor should be a servicable item, after having replaced mine and seen a wonderful improvement in engine performance and economy I'm inclined to agree!

Just replace it, they're so easy to damage or break whilst cleaning. There are a few people here including Vrstu who think that the MAF sensor should be a servicable item, after having replaced mine and seen a wonderful improvement in engine performance and economy I'm inclined to agree!

Ed - mine's in for a service next weekend so might as well get it feeling as fit 'n' fresh as possible. How much is a new MAF?

Yep, I really don't think that cleaning them is viable. Given that it will have a direct effect on the performance and fuel economy of your car I think you're as well to get a replacement.

Ed - mine's in for a service next weekend so might as well get it feeling as fit 'n' fresh as possible. How much is a new MAF?

Not sure it would be worth it if your car seems to be running OK economy and power and smoothness wise, as it is close to £60 if not just over. A lot of money to replace a part that hasn't gone wrong

I have cleaned them with clutch and brake cleaner in the past (not just of VAG stuff) with successful improvement but like Ed has said for £60 you may as well replace it.

Not sure it would be worth it if your car seems to be running OK economy and power and smoothness wise, as it is close to £60 if not just over. A lot of money to replace a part that hasn't gone wrong

Being a sensor i was expecting a couple of quid or a tenner max!

As you say with mine not running badly i think i'll leave it this time around and just settle for fresh lube and brake fluid (ready for Colerne)

I didnt realize it was that expensive (60). I will just leave it then until my 60,000 service or wait until my mpg goes down and its broken! What about just adding electrical grease to improve the current through the connection?

trry cleaning your throttle body with WD40... I did mine (after 40k) because my mpg was suffering and the car was spluttering from cold; and now it's much smoother! (and it didn't look that dirty tbh...)

trry cleaning your throttle body with WD40... I did mine (after 40k) because my mpg was suffering and the car was spluttering from cold; and now it's much smoother! (and it didn't look that dirty tbh...)

that means nothing to me! where is the throttle body and what it look like? lol

that means nothing to me! where is the throttle body and what it look like? lol

click here...http://briskoda.net/technical-guides/cleaning-throttle-body-1-8t-engine/145866/

HTH

trry cleaning your throttle body with WD40... I did mine (after 40k) because my mpg was suffering and the car was spluttering from cold; and now it's much smoother! (and it didn't look that dirty tbh...)

It's a 1.9 TDi John

It's a 1.9 TDi John

I did get a bit confused then! Iv got the slow tdi compared to the 1.8t. Just bought some silicone grease to try and improve things! I cant lose with it running rough anyway and will prob need replacing soon.

The silicon grease is for the terminals though, it's won't affect the sensor like cleaning with WD40 would.

The silicon grease is for the terminals though, it's won't affect the sensor like cleaning with WD40 would.

I just thought it might improve things a little.

If the MAF is a hot wire type (as i suspect) any oily substance would only serve in it's early demise!

You can clean it with isopropyl alcohol

"What about just adding electrical grease to improve the current through the connection?"

"that means nothing to me! where is the throttle body and what it look like? lol"

"I just thought it might improve things a little"

Poor car.

"What about just adding electrical grease to improve the current through the connection?"

"that means nothing to me! where is the throttle body and what it look like? lol"

"I just thought it might improve things a little"

Poor car.

Your a fool everytime you post it makes my blood boil!

Your a fool everytime you post it makes my blood boil!

why?:confused:

You can clean it with isopropyl alcohol

You can clean it with water if you wish, doesn't mean it'll do it any good.

I cleaned mine with a can of electrical cleaner from Halfords, was £3.99. Get a freezer bag place your maf carefully in there and start spraying the aerosol in there to fill the bag with cleaner, when the cans empty tie the bag and shake it gently for about 5-10 mins, carefully remove the maf senser and let it dry out for half an hour and then put it back on the car.

**One tip dont remove the maf from the section of pipe its fitted too as this acts to protect it**

You can clean it with water if you wish, doesn't mean it'll do it any good.

Well I sure wouldnt use water on a sensor.

Widely used as a solvent and as a cleaning fluid, especially for dissolving lipophilic contaminants such as oil. Examples of this use include cleaning electronic devices such as contact pins (like those on ROM cartridges), magnetic tape and disk heads (such as those in audio and video tape recorders and floppy disk drives), the lenses of lasers in optical disc drives (e.g. CD, DVD) and removing thermal paste from IC packages (such as CPUs.)