Yes, i have a c230 mercedes kompressor.

short answer go to dealers parts counter tell VIN and BINGO.
long answer, blind and no VIN./
no country told, ours is USA
and parts for cars say in Europe are not the same
so buy it where you live (a big secret?)
the dealer has parts
and most auto stores,
buy parts based on VIN, not told
air flow meter is MAF here in USA< mass air flow meter.
and only fits 1 engine,
got the super charger?
wild guess 1
3.2-litre V6 engine with a twin-screw type supercharge
????????????????
we can not guess country nor engine or if boosted.
and all boosted engine need a super high flowing MAF>
2x normal or more (to suck more fuel) and or MAP too.
or c230 flex fuel?

not sure me, id never own any German car. (need to speak it to fix it)
schematics on them are , a x100 fold HORROR, and i'm good at them.

Petrol:
1.8-2.3 L M111 I4
1.8 L M271 I4 Kompressor
2.0-2.3 L M111 I4 Kompressor
2.6 L-3.2 L M112 V6
2.5 L-3.5 L M272 V6
3.2 L Supercharged M112 V6 AMG
5.4 L M113 V8 AMG
Diesel:
2.1 L OM611 I4
2.1 L OM646 I4
2.7 L OM612 I5
3.0 L OM642 V6
3.0 L OM612 I5 AMG

Hi,
Here is the location of the "Knock Sensor" you requested, I hope it helps you. It is Number 17. for future reference here is the list of the others
1 = Camshaft position sensor (CMP)
2 = Crankshaft position sensor (CKP)
3 = Engine Control relay (EC) -engine bay fusebox/relay plate 1
4 = Engine Coolant temperature sensor (ECT)
5 = Exhaust gas recirculation valve actuator (EGR)
6 = Fuel Filter
7 = Fuel Filter Heater - in fuel filter housing
8 = Fuel Flow control valve - on high pressure fuel pump
9 = Fuel Rail pressure sensor(FRP)
10 = Fuel Temperature sensor - on high pressure fuel pump
11 = Glow Plugs
12 = Glow Plug Relay 1 - engine bay fuse box/relay plate 2
13 = Glow Plug relay 2 - engine bay fuse box/relay plate 2
14 = High Pressure fuel pump
15 = Injectors
16 = Intake air temperature sensor (IAT) - in MAF sensor
17 = Knock Sensor (KS)
18 = Mass Air Flow sensor (MAF)

clean your air flow sensor

Preferably the car is driven in D.
Knocking occurs due to the following reasons:
- Partially engaged brakes or car is driven with hand brake pulled .
- Contaminated or low octane fuel.
- Fuel pump pressure.
- Heavy carbon deposits on combustion chamber and piston top.
- Faulty knock sensor.
- Faulty MAP or Mass air flow sensor.
- Exhaust system clogged.

You could find that it is your mass air flow sensor at fault. doesn't always bring on your dtc light in the dash.
mass air flow sensor can knock out the turbo due to false readings being sent to the ecu. I have changed quite a few for this problem.

Hi,

Often a single issue can trigger multiple diagnostics codes, especially if the circuits are closely related.

Code P0100 = Mass Air Flow (MAF) Circuit malfunction

The computer has detected an issue with the MAF sensor.

- Verify the MAF sensor wiring is connected and wiring is in good condition
- Unplug and reconnect the MAF harness
- Check that voltage to the MAF sensor is within factory spec


Code P0325 = Knock Sensor # 1 Circuit malfunction

A knock sensor tells the engine computer when one or more of your engine's cylinders are "knocking", that is, exploding the air/fuel mixture in a way that delivers less power and can be damaging to the engine if prolonged. The computer uses this information to tune the engine so that it doesn't knock. If your knock sensor wasn't operating properly, so that it was always indicating a knock, the engine computer's response may have been to change the ignition timing on your engine. Knock sensors generally bolt into or thread into the engine block.

- Check condition of the knock sensor wiring.
- Test the 'Ohms' reading of your Knock Sensor (undo the connector and measure the pins) to ensure it is within spec (ask Nissan for this measurement). If out of spec, replace the knock sensor.

Cheers,


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mass air flow is right behind the air filter box if it's a c230 kompressor.

contamination from the compressor seal leaking oil. try cleaning the inside of the sensor with MAF cleaner, it is made by CRC chemicals

hello,maybe your fuel have some water,also fuel octane must be observe,you may clean also your idle actuator motor,ty

yes