2003 - 2006 SLK 350 Auto Spark plugs !! 12 or 6 ?

198 Views 14 Replies 6 Participants Last post by frogfoot, 4 d ago

ARoosterinaRoadster

Discussion Starter · 4 d ago

Hi again to you all out there. I have been perusing the SLK 350 as a possible step-up from my 2008 SLK 280.

Do all of the SLK 350's have the twelve spark plug technology or do some only use the six plug system that is more conventional ?

What is the cost of a plug change when it comes to changing all 12 and are they a specific plug manufacturers product ?
During the last week or so or so I have also looked at the probability of an SL 350 purely on the basis of it being a considerably more comfortable drive with better shaped seat and backrest profiles (Yes I know that this forum is for SLK's but they do both come as 350's).

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1 - 15 of 15 Posts

jbanks15

· #2 · 4 d ago (Edited)

Be glad you do not have the 16 plugs in a 55

anyway... 350s have 6 plugs

A 004 159 49 03
SPARK PLUG
Code: 716/718/700/830;

Quantity: 6

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jbanks15

· #3 · 4 d ago

280/300 same

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jbanks15

· #4 · 4 d ago

55

A 003 159 97 03
SPARK PLUG
[987, 988, 989]

Quantity: 16

jbanks15

· #5 · 4 d ago

200

A 004 159 45 03
SPARK PLUG
Code: F204/F203/F209/F211/F171/F906/F212;

Quantity: 4

jbanks15

· #6 · 4 d ago

spark plug change on a 55 with 16 plugs back in 2013

$444 labor
plugs 16 x $31.50 $504

less discount total $785.80
no dis $948

ARoosterinaRoadster

Discussion Starter · #7 · 4 d ago

Thanks Jeff. That is truly mind blowing as well as pocket busting. That is £636.00 Sterling.

Reactions: 1

jbanks15

· #8 · 4 d ago

and spark plugs for Super Charger again in 2016

specific plugs from KLEEMANN. It’s a colder heat range plug. Typical for superchargers
Cooler range of spark plug due to the boost we’re forcing into the motor. Cooler running plugs produce a better spark. 2 heat ranges colder than OE

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LeonardoDaBenz

· #9 · 4 d ago

Our '55's aren't cheap on maintenance. Looking for rotors (for next summer). JUST for fronts . EACH:

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zx81

· #10 · 4 d ago

LeonardoDaBenz said:
Our '55's aren't cheap on maintenance. Looking for rotors (for next summer). JUST for fronts . EACH:

All you can buy with money is cheap

Reactions: 1

LeonardoDaBenz

· #11 · 4 d ago

zx81 said:
All you can buy with money is cheap

I have come to this conclusion:

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LeonardoDaBenz

· #12 · 4 d ago

Sorry to have taken this off topic. Back to:

R171 Spark Plugs

Reactions: 1

Turbo

· #13 · 4 d ago

LeonardoDaBenz said:
Our '55's aren't cheap on maintenance. Looking for rotors (for next summer). JUST for fronts . EACH:
View attachment 628658

I chose TRWs when I changed all four of mine two years ago. They're A LOT cheaper!

https://www.autodoc.co.uk/trw/2189564

https://www.autodoc.co.uk/trw/2189550

I drive it quite hard (and over 10k miles) and they look almost brand new. No lipping and I have good grip with my Brembo pads that I got at the same time.

https://www.autodoc.co.uk/brembo/1661326

https://www.autodoc.co.uk/brembo/1661357

jbanks15

· #14 · 4 d ago

Sorry to have taken this off topic. Back to:

R171 Spark Plugs

Reactions: 2

frogfoot

· #15 · 4 d ago

bosh plugs on 350 cost me £47 from euro parts and change myself..very easy job to do on it

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