I desperately need help find rings for my C36 M104 engine. The VIN is
WDB HM36E4TF386984

The stamp on the Piston is
Mahle 91P16+ (89.90mm)

These are the rings that were in the engine (measured by my mechanic).
1.2 x 3.3
1.5 x 3.7
2.5 x 2.2

The dealer's part number through their chain of replacement numbers came up with
A 003 030 92 24
These rings are way too big for this piston and cannot be used.
1.50
1.75
3.00

Needless to say, I need help tracking down the correct rings for this engine. Please Help!

__________________
Chuck
'98 G36 - 300,000+ Miles (Official Range Rover Recovery Vehicle) • '03 E500 165,000 Miles • '07 ML320 CDI - 325,000+ Miles
'74 240D - 359,000 Miles (sold) • '76 300D - 350,000 Miles (sold) • '84 300CD- 280,000 Miles (sold) • '85 300D - 380,000 Miles (sold)
'87 300D - 350,000+ Miles (sold) • '87 300D - 300,000+ Miles (yes I had two)

the parts guy in me says the pistons got superceded and only the rings listed are available. smells like a set of pistons, too.

I believe CP pistons in california can get the correct rings for you,ill be using their rings or pistons on my c 36 project wagon 124

I will try them out when they open this week. Thanks

__________________
Chuck
'98 G36 - 300,000+ Miles (Official Range Rover Recovery Vehicle) • '03 E500 165,000 Miles • '07 ML320 CDI - 325,000+ Miles
'74 240D - 359,000 Miles (sold) • '76 300D - 350,000 Miles (sold) • '84 300CD- 280,000 Miles (sold) • '85 300D - 380,000 Miles (sold)
'87 300D - 350,000+ Miles (sold) • '87 300D - 300,000+ Miles (yes I had two)

a couple years ago another c 36 owner needed rings he stated cp got them for him

Does anyone know the official website or contact number? When I search CP Pistons, I get tons of different sites...

__________________
Chuck
'98 G36 - 300,000+ Miles (Official Range Rover Recovery Vehicle) • '03 E500 165,000 Miles • '07 ML320 CDI - 325,000+ Miles
'74 240D - 359,000 Miles (sold) • '76 300D - 350,000 Miles (sold) • '84 300CD- 280,000 Miles (sold) • '85 300D - 380,000 Miles (sold)
'87 300D - 350,000+ Miles (sold) • '87 300D - 300,000+ Miles (yes I had two)

In 1996 GM 60* V-6 engines of 3.1 & 3.4 L (among others) switched to 1.2mm & 1.5mm compression rings. The 3.1 in 1mm oversize would be a good source.
Also the 1999-02 3.5L V-6 Oldsmobile (VIN code H). It is 1.2-1.5-2.5!

The 2.5mm oil ring is an odd one; 3.0 & 2.8 are common. Check with Nippon Piston Ring (NPR).

[QUOTE=Braingears;4239216]Does anyone know the official website or contact number? When I search CP Pistons, I get tons of different sites...[/QUOTE. Try

CP carrillo

Deves makes excellent rings