New model Peugeot 306 repair and troubleshooting guide

[X-Axis]

...based on my experience. This guide may not work for everyone, however I'm going to add information based on my experiences with this car, as I've noticed that information is not exactly easy to come by online, and even if you find info, there would be several different solutions for the same issue. Once again, this is what worked for me. I own a 2000 306 station wagon. I'll keep adding more info from time to time so maybe others can be helped with solving an issue.

Problem 1. While driving, car would make a sharp jerk, then would remain in third gear. Also the sport and snow mode lights would flash on the dashboard.

Cause 1. Transmission oil was low due to a leaking converter seal

Solution 1. Converter seal changed and transmission oil replaced. Used ATF+4 oil. I believe it was a bit more than 5 quarts to do a full transmission oil replacement. Topping up the oil would've sufficed, however, I opted to repair the seal and completely replace all oil.

[X-Axis]

Problem 2. Gear shifter sticks in park, if left idling in park. Only way to get it out of park is to turn the vehicle off and on again.

Cause 2. Multi-function switch/neutralizing switch is defective

Solution 2. Replace multi-function switch.

[Pointman-IA]

Problem 2. Gear shifter sticks in park, if left idling in park. Only way to get it out of park is to turn the vehicle off and on again.

Cause 2. Multi-function switch/neutralizing switch is defective

Solution 2. Replace multi-function switch.

You are aware that replacing the multifunction switch is not just removing defective one and installing the new one right?

[X-Axis]

Yeah Im aware. To be sure all is properly synced etc, Im visiting Christopher in El Socorro on Tuesday so that Stephen (correct me if the name is wrong) can connect his computer, read error codes etc and adjust/reset if necessary. Please correct me if I mentioned something wrong. I welcome correction so that I can learn.

[Pointman-IA]

The multifunction switch provides control for the automatic transmission. The components of the Peugeot's transmission (AL4) is similar to the Renault's DP0 transmission, as well as the Citroen.

1) Put the multifunction switch into the neutral position.
2) Place the test probes of an ohmmeter on the multifunction switch position check tabs.
3) Turn the multifunction switch by hand until the electric contact is closed (resistance at contact terminals to be measured 0 ohms with a tolerance of 60 ohms)
4) Torque tighten the multifunction switch bolts 10Nm.
5) Check that the resistance at the contact terminals is still 0 ohms with a tolerance of 60 ohms after tightening.
6) Check that the system and gear selection are working correctly.

[Pointman-IA]

Model: 206, 306, 307, 406 with AL4 Automatic Transmission.

Symptoms
Flashing of the snow or sports light or Automatic Transmission Fault on display.

In most cases the transmission will go into the downgraded mode, or limp home. In this mode the transmission is locked in third speed to enable to continue the operation of the vehicle. This is reported by some drivers as a loss of power. The downgraded mode can be preceded by some very harsh up or down shifts. After stopping and restarting the engine, the transmission will usually return to normal operation.

Most of the time the problem appears at unpredictable intervals. Some owners experience incidences on a daily basis and others may have weeks of trouble free operation between incidents. Normally the malfunction lasts only for short periods, from a few seconds to a minute or two.

The following fault code is logged in the transmission ECU:
"Intermittent fault. Pressure regulation fault, recommendation/variation"

Cause
The pressure regulation fault code is triggered when the ECU senses a difference between the calculated pressure and the actual line pressure in the transmission. The pressure difference is caused by internal leakage. Internal leaks can be caused by mechanical wear, a leak between valve body and transmission casing, incorrect adjustment of the manual valve index spring. The most common cause however is the pressure regulation solenoid valve.

Diagnosis.
The diagnosis is not straightforward, several operations are required to eliminate possibilities.

Transmission fluid
Check the fluid level in the transmission and rectify if as required. Low or high fluid levels are equally harmfull.
Save some of the drained fluid in a clean container for examination.
The transmission may need to be overhauled or replaced if:
The fluid sample is black and smells burnt, contains metal particles, plastic particles or friction material.
New fluid is transparent. Fluid drained from a transmission that has been in operation for some time is usually dark in colour and lacks transparency, this is acceptable and not necessarily an indication of an internal fault. Caution is to be exercised with the fluid assessment.

Pressure sensor
With help of the diagnostic computer check the transmission line pressure.
The following parameters are expected.
At idle in N: 2,4 - 2,8 bars.
At idle in D: 2,8 - 3,1 bars.
Under full load 2200 rpm: 11,3 - 11,7 bars.
If there is no change in pressures, test the sensor and sensor supply.
If a sensor is faulty a constant pressure of 6,5 bars is maintained by the system. This would also mean that the transmision would be in Limp Home Mode and that the fault is permanent. Since the problem usually is intermittent the pressure readings will check out OK most of the time. If no other problems have been found so far, continue with section 3.

Solenoid Valves
Replace the pressure regulation valve and the converter lock-up valves.
Make sure the 2 seals behind the valve body are correctly fitted. If necessary replace the seals.
Tension the valve body bolts to 8 NM.
After fitting the valve body adjust the selector index spring
Adjust the multi-function switch.
Before fitting the pan ensure the 2 magnets are present.
Fill the transmission with new fluid and adjust the level.
Update the transmission ECU software. The older software versions are not compatible with the new Borg Warner valves.
The operations autlined obove will in most cases resolve the pressure regulation problem. If the problem can't be resolved follow step 4 or 5.

Valve Body
Replace the valve body

Transmission
Replace or overhaul the transmission.


Part No. For solenoid: 2574.10 (obsolete)

Part No. For new Borg Warner valves: 2574.16

Part No. For set of magnets: 2221.17

Part No. For transmission fluid. (2 litres): 9736.22

Important reminders

1) Only use genuine Peugeot transmission fluid.
2) The fluid level must be correct.
3) The correct adjustment of the manual valve index spring is very important.
4) Adjust the multi-function switch after the valve adjustment.

[X-Axis]

Great info dude, especially with the multi-function switch, I couldn't find that info online.Please pass through this thread from time to time, your info would be appreciated.

[X-Axis]

Place the test probes of an ohmmeter on the multifunction switch position check tabs.

Pal can you describe to me or better yet provide a pic of the multifunction switch position check tabs? Lemme go check the resistance myself.

[Pointman-IA]

ADJUSTMENT MULTI-FUNCTION SWITCH

Gear shift lever in position N .

Slacken the bolts (1) .

Place the multifunction switch up against the bolt (A) .

Set the multimeter to the ohmmeter position and connect it to the contacts (2) .

Rotate the multifunction switch until the circuit between the contacts is closed(R = 0 Ω) .

In this position, mark the position of the multifunction switch (B) in relation to the automatic gearbox housing (C) .

Continue rotating until the circuit between the contacts is open .

In this position, make another mark (D) on the automatic gearbox housing .

Rotate backwards so that the mark (B) is between the 2 marks (C) and (D) (middle position) .

In this position, tighten the multifunction switch securing bolts (1) .

Check the coherence between the position of the gear lever and the instrument panel display .

[X-Axis]

Couldnt have asked for better. Will report on my findings etc later. Lunch first.

[Reddo!]

good infor here...

[fido]

ENGINE FOE SALE 1.6 PHASE 3 2,800. CALL 3096679

[master sniper]

Wat about the rear wiper working sometimes then stops?