Question about Mercedes-Benz SLK55

1 Answer

I have a slk55 2006. When Cold starting the enginee. Loud clicking noise occurred when the enginee run @ 5000r/m. Noise comes from the upper part of the enginee. Till the enginee warm up to normal temp., then turning off the engine for thirty minute, retart the car, hopefully the clicking noise will be gone. I found the noise of the engine is quite adnormal since i purchase the car brand new. would you kindly giving me advice. Many thanks.

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

If your revving the engine to 5000 rpm when its cold, chances are the clicking noise is your valves. Cold oil will not get to the top end for proper lubrication until the engine warms up, and running at 5000 rpm with no oil?? not good. If your treating the car like that, I can't believe it hasn't blown up yet.

Posted on Jan 29, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Clicking noise was occurring from driver side while turning.


Possible drive axle came apart, jack up front end with safety stands, pull wheel off and inspect drive axle and related components; brakes, wheel bearing, etc...

Feb 22, 2014 | Cars & Trucks

1 Answer

Loud engine noise when cranking kia sedona


oil need to reach upper engine components its wear and such..be looking for loose hardware or anything shaking when starting..

Dec 27, 2013 | 2000 Mazda Protege

1 Answer

My airconditioning was on and then started making a loud noise


FROM YOUR DESCRIPTION IT SOUNDS LIKE THE A/C CLUTCH ON YOUR COMPRESSOR IS GOING BAD. U EITHER HAVE TO GET CLUTCH REPLACED BY EXPERIENCED COMPRESSOR REBUILDER OR REPLACE COMPRESSOR AS A WHOLE

May 06, 2012 | 2003 Buick Century

1 Answer

Infiniti G35 - 2006 Sedan - 37,000 miles. Knocking noise in engine area: Happens only in gear (drive or revese); loudest after engine is warm; took vehicle to dealer twice. First time, changed engine oil...


Smoke on start? Could be a valve problem where all your oil is in the bottom at start? Belts are squeaking too? Maybe a tensioner went bad?

Saw this service bulletin---

TAPPING / KNOCKING NOISE FROM ENGINE AT COLD START
This bulletin amends ITB02-049. This version amends the Applied Vehicles.
Please discard all paper copies of the earlier version.
APPLIED VEHICLE: 2002 - 2004 Q45 (F50)
2003 - 2004 M45 (Y34)
2003 - 2004 FX45 (S50) with V8 engine.
IF YOU CONFIRM:
A tapping or knocking noise (similar to a piston or valvetrain noise) when starting a cold engine,
NOTE: The engine is considered “cold” when it has been OFF (not running) for several hours.
ACTIONS:
1. Dislodge and remove any carbon deposits that may have caused the noise and confirm that carbon
deposits were the cause of the noise.
• While the noise is occurring, quickly rev the engine several times to approximately 4,000 RPM. Then
release the accelerator quickly, as soon as the engine reaches 4,000 RPM.
• The noise should disappear immediately if carbon deposits are the cause.
NOTE:
• If the customer reported a noise that exactly matches the symptoms listed above, but you cannot
duplicate it, the cause may still be carbon deposits. Go to step 2.
• If the noise does not stop after revving the engine, or you observe any other noise that doesn’t match
one described above, go back to ASIST for further diagnostic and repair information.
2. To prevent this incident from occurring again, add a bottle of Nissan In-Tank Fuel System Cleaner
P/N 999MP-FSC00P to a full tank of fuel (in the vehicle’s fuel tank) according to the instructions on the
label.
• This product is proven to reduce carbon deposits on pistons and combustion chambers, as well as
cleaning other components of the fuel system.

Hope helps.

Sep 08, 2010 | 2006 Infiniti G35

1 Answer

Engine is now clicking when running. Now what?


A clicking can be caused by many things.This is a solid cam/rocker style engine,so periodic adjustment is required.Fuel injectors click when the engine is running-a normal noise.Honda 2.3 engines are noted for having some piston slap,most noticeable when the engine is first started cold,but gets less loud after warm up.You are going to have to let a Honda shop listen to this noise and evaluate just how serious it is...many dealers are looking for work to keep their tech's busy,if you walk in and ask what's this clicking noise? you may get a free estimate out of them...

Apr 09, 2010 | 1998 Honda Accord

2 Answers

Noise coming from the rear end of my 2004 honda pilot it really only occurs during cold weather and after it warms up you hear it slightly


When does the noise occur, while driving only, or driving and idle, in gear, or in neutral and park? If it occurs all the time (while driving and at a stand still in cold weather) it could be the fuel pump. If it occurs only while driving, it may be a wheel bearing. Describe the noise (humming, grinding, whirring, etc), and what is the mileage on the Pilot? Answer my questions so I can fine tune my answer. Thanks!

Mar 18, 2010 | 2008 Honda Pilot

2 Answers

Loud clicking noise when steering wheel is turned in either direction past center. Same noise when travelling over rough road or bumps.


The loud clicking noise you described is most likely a worn CV joint in the axle. The noise on rough roads is likely a ball joint or upper control arm ( there are 4 of them on your passat ) .
I would take your car to an alignment shop for a thorough inspection. Don't take it to a VW dealership , they will overcharge you for the work. They quoted me 3 hours labour to replace an upper control arm ball joint. I did it my self in the driveway in 25 minutes.

Nov 05, 2009 | 1999 Volkswagen Passat

1 Answer

Loud sweeking noise at start, when cold outsides


most likely your alternator, when it is cold and you start the alternator needs to recharge a heavy discharge, bearings or slip ring worn. also check the drive belt for wear,

Nov 24, 2008 | 1994 Mercedes-Benz C-Class

1 Answer

I bought a 96 dodge intrepid 3.5 v6 car that ran great except it was leaking oil from somewhere on the front bottom left hand side of the engine checked everything and put power steering fluid cause it was...


It sounds like the car was ran out of oil.The engine bearings and crankshaft journal are probably scarred.The noise you are hearing is more than likely a piston rod slapping around about to break loose from the crankshaft.So,yes the engine is toast...Sorry..Good Luck!!!

Aug 05, 2008 | Dodge Intrepid Cars & Trucks

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

300 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mercedes-Benz Experts

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

yadayada
yadayada

Level 3 Expert

61249 Answers

Michael Contreras
Michael Contreras

Level 2 Expert

164 Answers

Are you a Mercedes-Benz Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...