Volkswagen T6 - hissing noise from engine compartment
| Data sheet | |
|---|---|
| Manufacturer | Volkswagen |
| Vehicle model | Transporter T6 (SF/SG) |
| Engine | 2.0 TDI (CAAC/CXFA/CXHA) |
| Year of manufacture | 2015 - 2019 |
| Symptoms | Hissing noise from the engine compartment |
Important safety note
Hissing noise when accelerating
On the vehicles mentioned above, hissing noises can occur from the engine compartment during the acceleration phase. There is often no noticeable loss of power and the engine control lamp is also off.
Defective or loose hoses or hose connections in the area of the charge air cooler are possible causes (Fig. 1).
In addition, it is also possible that the charge air cooler itself is damaged. Often a visual inspection reveals the cause. Traces of oil on the surface(Fig. 2) indicate a crack, which causes the noises mentioned above.
The charge air cooler must be replaced to rectify the problem.
Figure 1: Charge air cooler
Figure 2: Oil traces on the charge air cooler
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