C3 Brief "machine Gun" Sound From Dashboard

[sjw]

I have about a 5 second rattle (sounding like a small machine gun!) coming from the dash, apparently just to the right of the CD player (Spanish model C3 1.4 Hdi SX 70 with auto aircon) It happens, I think, when the temperature in the car reaches the temp set on the air con but in winter it happens as soon as I start the car. Doesn't seem to cause any problems but terrifies new passengers. Any ideas?

 

(apologies if this has already been covered - I'm new to the forum)

[kfk]

Does it sound like someone tapping a ringed finger against the windscreen......and does it happen when you start it up?

 

If so i would think its one of the heater box control flap motors.....time to get your head up under the dash board i think!........the good thing is being left hand drive you wont have the pedals getting in your way like we do in the UK.

[sjw]

Does it sound like someone tapping a ringed finger against the windscreen......and does it happen when you start it up?

 

If so i would think its one of the heater box control flap motors.....time to get your head up under the dash board i think!........the good thing is being left hand drive you wont have the pedals getting in your way like we do in the UK.

 

 

Thanks 4 the speedy reply - I will go digging & see what I can find

[Guest Paul_L]

Is there any way to upload a wav file of the sound? I have a similar problem and I managed to record the noise.

[techbod]

turn the auto air-con off and see what happens ( a tapping ring on the window means your wife has caught you ) ;)

[TheLoon]

Does it sound like someone tapping a ringed finger against the windscreen......and does it happen when you start it up?

 

If so i would think its one of the heater box control flap motors.....time to get your head up under the dash board i think!........the good thing is being left hand drive you wont have the pedals getting in your way like we do in the UK.

i have had the same problem today, what is it i am looking for?

[CE08LDB]

These Digital Air Con are a pain. Every couple of months on my last C3 it wouldn't stop blowing out cold air for an hour. Now my brothers C3 wouldn't stop blowing hot air out yesterday.

 

I am glad I got the manual Air Con on my C2. Much better. Less to go wrong.

[TheLoon]

Garage confirmed its the recirculation motor. Cost of part and fitting £240. Thankfully i bought a warranty and it is covered. Is it me or i am thinking the Air Con system is a weakness in the C3 range? ;)