Audi TT - Vibrations and noises | HELLA

Audi

TT

Model year: 2004–2005

Chassis No.: 8N41015239 - 8N51004029

Vibrations and noises

Poor air conditioning system performance

Different condensers

In the vehicles listed above, operating the air conditioning system may result in vibrations and noises.

These usually occur at about 3500 rpm and reach into the vehicle interior. Overfilling the air conditioning system has been considered as a potential cause.

Another complaint could be the poor performance of the the air conditioning system when exterior temperatures are high. In some cases, this is caused by having too little coolant.

The condenser should receive special attention in both cases. Both the vehicle manufacturer and the independent aftermarket use two different condensers (depth of 16 mm and 20 mm, see drawing). The vehicle manufacturer used a condenser with a depth of 20 mm (1J0820413N) up to chassis No. 8N-5-005-947; from chassis No. 8N-5-005-948 onwards, a condenser with a depth of 16 mm (8N0820411N) was used.

The correct coolant capacities are as follows:

20 mm depth = 750 g / 16 mm depth = 650 g

Note: Some independent aftermarket suppliers only offer one condenser design for all models. The fill volume has to be adjusted if necessary.

bi_en_airco_audi_tt_klima_geraeusche_leistung_vibration001.jpg

Mini F56 - water ingress in the vehicle interior

In the Mini F56, water may collect in the driver or front passenger footwell. You can find the solution here.

Reading time: 2 minutes

VW T6 - engine does not reach operating temperature

In the VW T6l it can happen that the engine temperature display stops at approx. 70 °C. No errors are stored in the engine control unit. Here’s the solution

Reading time: 2 minutes

Nissan Navara (D40) - Constant coolant loss

A steady loss of coolant discovered in a Nissan Navara may be caused by cracks in the cylinder head. What can be done?

Reading time: 1 minute

BMW 1 Series - Air conditioning system noises

An undefinable buzzing noise heard in the BMW 1 Series when the air conditioning is switched off may be caused by the air conditioning compressor

Reading time: 1 minute

Renault Scenic - Replacing the cabin filter

Replacing the cabin filter is a little complex. It is located in the left-hand area of the passenger footwell. Here are some tips on how to replace it.

Reading time: 1 minute

Volkswagen Transporter T6 Loss of coolant

If the coolant indicator lamp lights up in the VW T6/the engine temperature is elevated, the cooling system should be checked

Reading time: 1 minute

MCC Smart (451) - Replacing the cabin filter

In the Smart 451, the cabin/pollen filter is changed from the driver's footwell. We show you how to perform the change to a professional standard.

Reading time: 1 minute

Kia Sportage - poor air-conditioning performance

If the performance of the air-conditioning system in the Kia Sportage is inadequate when outside temperatures are high, the following is a possible cause

Reading time: 1 minute

Mazda 3 BL Noises coming from air conditioning compressor

Reading time: 1 minute

Ford Focus C Max Loss of refrigerant

Reading time: 1 minute

Not helpful at all

5

4

3

2

1

Very helpful