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Discussion Starter · #1 ·
Does anyone know the type of tool needed to remove the 2 bolts? They are not the same style as the ones to get at the air filter. Seems like the MAM bolts have a similar pattern but some metal in the center.
Thanks
 

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Re: Mass Air Meter - 2 Bolts (CBJ)

Quote, originally posted by CBJ »
Does anyone know the type of tool needed to remove the 2 bolts?

They're not bolts, they are screws. They have a Torx TX head.
 

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Re: Mass Air Meter - 2 Bolts (Blessyouboys)

They are five lobe tamper proof torx screws. You either need to buy the appropriate torx bit available here: http://www.metalnerd.com/cat05.htm Part MN505000 - 5 Lobe MAF Bit



(It's also available elsewhere I would imagine, but I bought mine from metalnerd and it was cheap and shipped quickly. In any case, be careful that you buy a five lobe tamperproof torx NOT the far more common six lobe)

OR

Apparently you can also use vice grips to grab the screw and manually back the screws out and then replace with regular screws so you don't have to go through the same hassle the next time. I haven't actually done this, but have read reports that it has been done.

Cheers,

J
 

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Re: Mass Air Meter - 2 Bolts (CBJ)

They are a 5 point, anti tamper, T-25.

The Torx must be 5 point, (as opposed to the normal 6), and have a hollow center for the anti-tamper peg.

These are commonly used on Bosch components and some people refer to them as "Bosch Torx".

The set I have is made by Klann Tools, KL-4064-601K.
 

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Re: Mass Air Meter - 2 Bolts (CBJ)

Quote, originally posted by rogersampson »
They are a 5 point, anti tamper, T-25.

The Torx must be 5 point, (as opposed to the normal 6), and have a hollow center for the anti-tamper peg.

These are commonly used on Bosch components and some people refer to them as "Bosch Torx".

The set I have is made by Klann Tools, KL-4064-601K.
In addition, I believe they are technically referred to as 5pt Torx Plus screws. Any Snap-on or matco truck should have the T25 in stock as it is a VERY common screw used on european cars w/ the bosch maf.

In addition to that, Volvo made the switch to the 5pt torx plus with the 99MY IIRC. Pre MY99 used a standard Torx Plus. I'll stop boring you guys.
 

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Re: Mass Air Meter - 2 Bolts (gdogg16)

I guess if your under warranty, you would want to replace the factory screws..

But if your tampering with your MAF under warranty...why would you?

Just rip them out with some pliers and replace like I did. Why bother buying a Torx bit that you'll never reuse.... If your a garage mechanic.

 

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Re: Mass Air Meter - 2 Bolts (chinaonnitrous1)

Maybe for me it is just an excuse to buy more tools, but of the four cars currently in my stable, 3 of them use Bosch injection, and this tool. One of the motorcycles I own uses it, (Delphi fuel injection).
 

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Discussion Starter · #10 ·
Re: Mass Air Meter - 2 Bolts (CBJ)

Does it sound nuts to bother cleaning the meter with only 14,000 miles on the car? I have had it since Sept. 07 and will change the air filter tomorrow. Somewhere I read it may be a good idea to clean the air mass meter when replacing the air filter.
Thanks
 

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Discussion Starter · #11 ·
Mass air Meter

Is it necessary to clean the meter after changing the air filter. In my case I am changing the filter at 14,000 miles on a car I have been driving since 9/07.
 

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Re: Mass Air Meter - 2 Bolts (rogersampson)

Quote, originally posted by rogersampson »
Maybe for me it is just an excuse to buy more tools, but of the four cars currently in my stable, 3 of them use Bosch injection, and this tool. One of the motorcycles I own uses it, (Delphi fuel injection).

Ahh, very nessary for you then. I thought about buying the bolt, then I just figured id never use that Torx bit again..... and when I need it, I won't be able to find it.
 

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Re: Mass Air Meter - 2 Bolts (CBJ)

Quote, originally posted by CBJ »
Does it sound nuts to bother cleaning the meter with only 14,000 miles on the car? I have had it since Sept. 07 and will change the air filter tomorrow. Somewhere I read it may be a good idea to clean the air mass meter when replacing the air filter.
Thanks

I don't think thats necessary. I cleaned mine at 60k miles after 4~5 track days.

Pics here

http://forums.swedespeed.com/zerothread?id=118610
 

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hethen for using none metric screws in a volvo

 

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Re: (Chilled Man)

Quote, originally posted by Chilled Man »
hethen for using none metric screws in a volvo

 
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