[r]Alex

Сообщение от Mr85

господа, уже выкладывал как-то VAG-овский сервисный бюллетень (TSB), о том что 1-2 секндное тррр после долгой стоянки - НОРМА.
на всякий случай еще раз:

VW TSB # 15 06 01 2012988
Engine - Rattling Noise On Start Up (Normal Condition)

Model(s) ALL Year 1999-2005 Engine 1.8T - 2.8L - 4.2L Trans ALL Vin Range ALL

All the vehicles mention above uses hydraulically actuated camshafts which is controlled by the engine oil pressure.

When the vehicle sits for long periods, the engine oil accumulation in the camshaft adjusters tends to bleed off,

flowing back into the oil sump. When the cold engine is started the oil pressure has to be built back up in the

camshaft adjusters, during this time a slight rattle/knocking noise may be noticeable, this noise is normal at these

start ups and will last only until the oil pressure is fully restored.

DO NOT Replace the Camshaft Tensioner(s) or Camshaft Adjuster(s) for the noise described above.

Replacing the camshaft tensioner(s) or camshaft adjuster(s) will not get the rid of the noise.

15 06 01 Oct. 24, 2006 2012988

Technical Background

The camshaft adjustment is hydraulically actuated and controlled by the engine oil pressure.

If the vehicle has been sitting, with the engine turned off for a period of time, the oil accumulation inside the

camshaft adjusters partially bleeds off and the oil flows back into the oil sump. To ensure an efficient camshaft

adjustment after an engine cold start, the oil pressure inside the camshaft adjusters must be built up as quickly

as possible. During this time a slight rattle or knocking noise may be audible.

This noise is normal at engine start and will last until the oil pressure is fully reinstated.


Production Solution

No production change required.


Service

DO NOT replace the Camshaft Tensioner(s) or Camshaft Adjuster(s) for the noise concern as described above.


Tip:

Replacing the Camshaft Tensioner(s) or Camshaft Adjuster(s) will not eliminate this noise.

где-то на форуме был перевод...

меня тоже этот звук безумно задолбал. и реально на мотюле x-cess он появляется почти всегда при старте утром и вечером после работы. именно поэтому перешел обратно на мобил-1, с которым трещит хотябы через раз-через два (это безотносительно спора лучше/хуже масло и т.п. )

--- Добавлено чуть позже ---

есс-но речь только об 1, макс. 2 сек. сразу после старта, если цепь гремит на холостых или при сбросе газа - либо нет давления, либо ГНЦ неисправен, ну либо цепь

Сохраню в дневник, чтобы долго не искать