C63 pump noise?

Jonathan Schofield

Active Member
Joined
Oct 6, 2017
Messages
37
Reaction score
26
Your Mercedes
C43 Estate 2016
I have been enjoying my C63 Estate for 10 months now, having covered nearly 15000 miles and accumulating a lot of Shell points (and a speed awareness course!) Most has been motorway miles and the average mpg is over 22 on those runs dropping to 16 if on a short trip to town. I have 2 rules, don't start the car just to move it a short distance and never exceed 2000 rpm until the oil is up to temp.

So far I've changed the gearbox oil and engine oil and filters, replaced two rear tyres and had new disks up front (ouch!) and a nsf wheel bearing. Richard Hollings of York has done the work and I can't recommend them too highly. IMG_1712.jpg

However, I have a question that Richard couldn't answer:
After the car has started from cold and the temperature has risen above 60 the first time that the vehicle stops (at a junction or lights for example) there is the sound of a high pressure pump that runs for around 30 seconds rising in intensity after the first 15 seconds. The sound is similar to the sound an aircraft makes when it is lowering its landing gear and it only happens once per journey. Occasionally I can travel perhaps 60 miles or more without stopping and then there it is, the one off sound of a high pressure pump. I'd love to know what it is.

Here's a picture of my car kissing my wifes car...
IMG_1729.jpg
 
OP
Jonathan Schofield

Jonathan Schofield

Active Member
Joined
Oct 6, 2017
Messages
37
Reaction score
26
Your Mercedes
C43 Estate 2016
  • Thread Starter
  • Thread starter
  • #3
I don't know, is there a secondary air pump and what is it for? I would guess that the noise comes from the NSR, under the back seat, but I'm not sure. It does only come on once in any given journey. Also when I stop and I set off before it has finished then it will continue at the next stop.
 

alexanderfoti

MBO Forum Supporter
Authorised Forum Supporter
Joined
Mar 25, 2010
Messages
15,091
Reaction score
6,247
Location
Tonbridge
Your Mercedes
W221 S65 AMG - W204 C63 AMG + Various other MB's
Yes, secondary air pump comes on when driving in slow traffic just after cold startup.

It comes on and off and also appears to change in pitch.

Although it certainly won't come on after 60 miles, unless the relay is sticking. I think its more likely you are hearing the oil cooler fan, which is very loud.
 
OP
Jonathan Schofield

Jonathan Schofield

Active Member
Joined
Oct 6, 2017
Messages
37
Reaction score
26
Your Mercedes
C43 Estate 2016
  • Thread Starter
  • Thread starter
  • #5
Alexander, thanks for the reply, what is this pump for?
I don't think I have heard the oil cooler fan, and this happens after the first stop whether up to temp or not and only the once (unless interrupted).
 

alexanderfoti

MBO Forum Supporter
Authorised Forum Supporter
Joined
Mar 25, 2010
Messages
15,091
Reaction score
6,247
Location
Tonbridge
Your Mercedes
W221 S65 AMG - W204 C63 AMG + Various other MB's
Alexander, thanks for the reply, what is this pump for?
I don't think I have heard the oil cooler fan, and this happens after the first stop whether up to temp or not and only the once (unless interrupted).

In that case, its not the oil cooler fan.

Without hearing it, I can't say what it is. Sounds like the secondary air pump, but that won't run at the end of a 60 mile run.
 

John Laidlaw

Senior Member
Joined
Nov 15, 2013
Messages
26,373
Reaction score
9,163
Location
Wirral
Your Mercedes
Land Rover Discovery 4
Does your car have Air matic , being an estate?
 

alexanderfoti

MBO Forum Supporter
Authorised Forum Supporter
Joined
Mar 25, 2010
Messages
15,091
Reaction score
6,247
Location
Tonbridge
Your Mercedes
W221 S65 AMG - W204 C63 AMG + Various other MB's
Does your car have Air matic , being an estate?
Its an option on the 204, not sure if available with the C63 estate but I think that would be the most likely thing.
 
OP
Jonathan Schofield

Jonathan Schofield

Active Member
Joined
Oct 6, 2017
Messages
37
Reaction score
26
Your Mercedes
C43 Estate 2016
  • Thread Starter
  • Thread starter
  • #9
As far as I know it doesn't have AirMatic, it's a mystery noise but I'm not losing sleep over it.
Thanks one & all for your help.
Jonathan
 

alexanderfoti

MBO Forum Supporter
Authorised Forum Supporter
Joined
Mar 25, 2010
Messages
15,091
Reaction score
6,247
Location
Tonbridge
Your Mercedes
W221 S65 AMG - W204 C63 AMG + Various other MB's
As far as I know it doesn't have AirMatic, it's a mystery noise but I'm not losing sleep over it.
Thanks one & all for your help.
Jonathan
If you PM your VIN number I can tell you if its the self levelling rear suspension.
 
OP
Jonathan Schofield

Jonathan Schofield

Active Member
Joined
Oct 6, 2017
Messages
37
Reaction score
26
Your Mercedes
C43 Estate 2016
  • Thread Starter
  • Thread starter
  • #11
Alexander

I had this done for me on a different thread a little while ago, I can't see the required part number:

Main data
Parameter Value
Ident. number (FIN) WDD2042772F166081
VIN WDD2042772F166081
Baumuster 204277
Sales name C 63 AMG

Order number 0 8 537 17611 (Destination: Great Britain)
Delivery date 25 04 2008
PAINT1 775U BRIGHT SILVER METALLIC CLEAR COAT PAINT
Interior color 201A LEATHER - BLACK/ANTHRACITE
Engine 156985 60 027536
Gearbox 722907 01 751673
General data for model code 204277

Parameter Value
200A LEATHER
201A LEATHER - BLACK/ANTHRACITE
205B OWNERS MANUAL AND SERVICE RECORD - ENGLISH
220 PARKTRONIC SYSTEM (PTS)
241 FRONT SEAT LH ELECTRIC ADJUSTABLE WITH MEMORY
249 INSIDE AND OUTSIDE MIRROR AUTOMATIC DIMMING
250B MOBILO LIFE/EUROPE SERVICE PACKAGE
265 LINES-NO.PLATE DISCONTINUED
275 MEMORY PACKAGE (DRIVER SEAT, STRG. COL., MIRROR)
283B AIRBAGLABLE - ENGLISH
287 THROUGH-LOADING FEATURE
293 SIDEBAG IN REAR LEFT AND RIGHT
294 KNEE AIRBAG
297 ELECTRIC ROLLER SUN BLINDS IN REAR DOOR LH AND RH
299 PRESAFE
305B HEAD UNIT LANGUAGE - BRITISH ENGLISH
310 DUAL CUP HOLDER
335B INSTRUMENT CLUSTER/HU LANGUAGE - ENGLISH
345 RAIN SENSOR
386 UNIVERSAL TELEPHONY PACKAGE
390 LINGUATRONIC-ENGLICH(BRITISH)
414 ELECTRIC TILT/SLIDE SUNROOF IN GLASS VERSION
427 AUTOMATIC TRANSMISSION 7-SPEED
440 TEMPOMAT (CRUISE CONTROL)
461 INSTRUMENT WITH MILES IND. AND ENGLISH LEGEND
477 TIRE PRESSURE LOSS WARNER
500 OUTSIDE REAR VIEW MIRROR LH AND RH FOLDING
512 COMAND APS WITH DVD CHANGER
537 DIGITAL RADIO STANDARD DAB (DIGI. AUDIO BROADC.)
551 ANTI-THEFT/ANTI-BREAK-IN WARNING SYSTEM
581 AUTOMATIC CLIMATE CONTROL
584 ELECTRIC WINDOW REGULATOR
5XXL EUROPE
600 HEADLAMPS - CLEANING EQUIPMENT
619 CORNERING ILLUMINATION
621 HEADLAMP WITH ILS, LEFT-HAND TRAFFIC
666 PRODUCT PROT.F.TRANSPORT VEH. W/O TIE-DOWN HOOKS
682 FIRE EXTINGUISHER
690 EMERGENCY SPARE TIRE (MINI SPARE)
739 TRIM PIECES - ALUMINUM
73V SPEED- + LOADINDEX 94Y XL+95Y XL
772 AMG STYLING PACKAGE-FRONT SPOILER, SIDE SKIRT
775U BRIGHT SILVER METALLIC CLEAR COAT PAINT
776 WHEEL ARCH ENLARGEMENT
790 18" AMG SPOKED WHEELS WITH MIXED TIRES
808 AEJ 07/1
808 *1 156.9__ 20060905 AEJ 07/1
808 *2 204____ 20050721 AEJ 07/1
808 *3 722.9__ 20050822 YOM 17/1
810 PREMIUM SOUND SYSTEM
817 SIREN BRACKET FOR INCREASED THEFT PROTECTION
873 SEAT HEATER FOR LEFT AND RIGHT FRONT SEATS
875 HEATED SCREEN WASH SYSTEM
882 INTERIOR SAFEGUARD
885 HIGHTEN THEFT PROTECTION
890 AUTOMATIC REAR-END DOOR
954 EQUIPMENT PACKAGE FOR AVANTGARDE VEHICLES
983 COC PAPER EURO 4 TECHNOLOGY W/O REG. CERT. PART II
989 IDENTIFICATION LABEL UNDER WINDSHIELD
A22 NEW CONVERTER GENERATION
A24 JOINT FLANGE, 4-ARM 120
A36 TORQUE CONVERTER HOUSING AGA
A38 M - VALVE BODY ASSEMBLY WITH VGS 2
A41 SOFTWARE 2
A44 SOFTWARE 3
A50 ENGINE BRACKET VARIANT
F204 MODEL SERIES 204
G907 TRANSMISSION CODE VERSION 07
GA AUTOMATIC TRANSMISSION
HA REAR AXLE
K11 ADAPTIVE STOP LIGHT FLASHING
K14 CONTROL CODE FOR SERVICE INTERVAL 20000 KM
M156 V8 GASOLINE ENGINE M156 - AMG
M63 6.3 LITER DISPLACEMENT
NB0 NEW VEHICLE DOCUMENTS: DAIMLER AG
R RIGHT-HAND STEERING
R01 SUMMER TIRES
U01 REAR BELT STATUS INDICATION
U18 AUTOMATIC CHILD SEAT RECOGNITATION (AKSE)
U26 FLOOR MATS - AMG
U37 FOGLAMP
U72 DVD PLAYER WITH REGIONAL CODE 2, EUROPE, JAPAN
VL FRONT AXLE HALF, LEFT
VR FRONT AXLE HALF, RIGHT
SPRINGS
Parameter Value
Front suspension strut A 204 320 68 66 ,
Front springs A 204 321 42 04 ,
Rear springs A 204 324 06 04 ,
Rear shim A 210 325 04 84 ,
Other information
Parameter Value
EU approval date 20071128
EU approval number e1*2001/116*0457*01
Additional info for engine
Parameter Value
Engine 156985 60 027536
AGG_VAR A 156 010 12 00
Variant A 156 010 12 00

Thanks

Jonathan
 
OP
Jonathan Schofield

Jonathan Schofield

Active Member
Joined
Oct 6, 2017
Messages
37
Reaction score
26
Your Mercedes
C43 Estate 2016
  • Thread Starter
  • Thread starter
  • #12
It's my sad duty to report that I have parted with my much lamented C63 Estate. 93,000 miles and in wonderful, no expense spared, fettle. I had a little trouble selling her, and eventually parted with some considerable financial loss.

However the facts are that with my work I was putting in £85 of Shell V Power 3 times per week and getting around 230 miles per tank. I am currently running a Beemer 520D and that suffices with supermarket diesel and gets 720 miles per tank. The figures speak for themselves.

All in all my brief, passionate affair with the Merc has cost around £50 per day; I miss her dreadfully.

And the BM I hear you ask? She is like an ugly woman, she does the business well enough but I'll never love her.

In the immortal words of Arnie: "I'll be back!" (Subject to my numbers coming up on the lottery).
 
OP
Jonathan Schofield

Jonathan Schofield

Active Member
Joined
Oct 6, 2017
Messages
37
Reaction score
26
Your Mercedes
C43 Estate 2016
  • Thread Starter
  • Thread starter
  • #14
It's a long story but essentially I needed to move quite quickly (tax bill due!) and the BM was available there and then on a very cheap PCP...

It could be one of those cheap fumbles that one soon regrets.
 

bembo449

Senior Member
Joined
Jan 2, 2012
Messages
6,774
Reaction score
3,518
Location
gainsborough , lincolnshire
Your Mercedes
Mercedes Cl500, shitron dispatch
I guess that's how the cards fall sometimes pal , at least you can say you have had the pleasure of owning / driving one of the worlds greatest NA engines :p:D;)
 

Del01

Member
Joined
Dec 14, 2013
Messages
16
Reaction score
9
Location
West Sussex
Your Mercedes
C63 AMG Estate W204, C300e Estate W205 AMG Line (Night Ed) Premium Plus
For me it is all about the engine - sound and performance - gritted teeth on the running costs!
 

AIB understand your special Mercedes deserves a special insurance policy. We have a refreshing attitude to insuring high performance, modified, imported or classic and vintage cars and deal with the UK’s leading insurers. We offer discounts for length of ownership, where the vehicle is kept overnight and limiting the mileage and can also cater for those clients who need higher mileage and business use. To obtain a quotation please call the team on 02380 268351 or visit us atAIB Insurance
Top Bottom