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1995 Mercedes E230
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22 Posts
Discussion Starter #1
Helllo! I have nss with 6 pins (722.4)
And i swapped transmission another 722.4. But now my nss plug have 6 pins but on tranny there is only 4 pins. The
2633212
same nss with the same style connector . What to do?
 

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2,810 Posts
Helllo! I have nss with 6 pins (722.4)
And i swapped transmission another 722.4. But now my nss plug have 6 pins but on tranny there is only 4 pins. The same nss with the same style connector .... What to do?
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E320/E250 Bluetec Ford F350 6.7l
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36,706 Posts
Those switches were used only on 1st year of W210, who had drive train grandfathered from W124.
So you will find more info about it in W124 section.
 

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1998 E320 base sedan @ 160kmiles
Joined
6,678 Posts
You need to specify the full transmission number that the car has, and the transmission number of the replacement.

Like 722.4XX.

The 4 wires for the transmission are for the starter and the reverse lights. Not sure what the remaining 2 pins are for for your car. If you provide the transmission numbers in full, it may help.
 

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1995 Mercedes E230
Joined
22 Posts
Discussion Starter #5
You need to specify the full transmission number that the car has, and the transmission number of the replacement.

Like 722.4XX.

The 4 wires for the transmission are for the starter and the reverse lights. Not sure what the remaining 2 pins are for for your car. If you provide the transmission numbers in full, it may help.
Transmission code is 201 271 0701
I think it is 722.421. Sory for bad quality picture.
2633358
 

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Dallas, Texas
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7,710 Posts
Transfer NSS from old transmission to replacement. Two additional pins send signal for shifter position to engine control module.
 

Premium Member
1998 E320 base sedan @ 160kmiles
Joined
6,678 Posts
OK.

I am a bit confused whether the old transmission has 4 pins or the new one has 4 pins. But here it goes.

The 4 pins are compatible: pins 1 and 2 are for the reverse light and pins 8 and 9 are for the starter switch. So the car should start and when the gear in reverse, the back up lights should light up.

The extra two pins, 6 and 7 are for gear 2/3 recognition. Meaning, when the gear is in D, the resistance between pins 6 and 7 is very high (open) and then the gear is either 2 or 3, the resistance between those pins is low (short). These pins are connected to the Engine Computer. What the engine computer does with them, I have no idea (yet). So you can put the old nss into the new one.
 

Registered
1995 Mercedes E230
Joined
22 Posts
Discussion Starter #8
OK.

I am a bit confused whether the old transmission has 4 pins or the new one has 4 pins. But here it goes.

The 4 pins are compatible: pins 1 and 2 are for the reverse light and pins 8 and 9 are for the starter switch. So the car should start and when the gear in reverse, the back up lights should light up.

The extra two pins, 6 and 7 are for gear 2/3 recognition. Meaning, when the gear is in D, the resistance between pins 6 and 7 is very high (open) and then the gear is either 2 or 3, the resistance between those pins is low (short). These pins are connected to the Engine Computer. What the engine computer does with them, I have no idea (yet). So you can put the old nss into the new one.
Ok. Thanks for the help both of you :)
 
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