CLK-Class Interactive Owner's Manual [In depth | Technical data

Service products and capacities

Quick Access

Notes on service products and capacities

Fuels

Introduction, fuel consumption

Windscreen washer system

Notes on service products and capacities

Service products are:

Fuels (e.g. petrol, diesel)
Lubricants (e.g. engine oil, transmission oil)
Coolant
Brake fluid
Windscreen washer fluid

Mercedes-Benz recommends that you only use those products which have been tested and specially approved by Mercedes-Benz for your vehicle and are listed in the Mercedes-Benz Owner's Manual in the relevant chapter since:

parts and service products are matched
damage caused by the use of non-approved service products is not covered by the warranty

You can recognise service products approved by Mercedes-Benz by the following inscription on the containers:

MB-Freigabe (e.g. MB-Freigabe 229.51)
MB Approval (e.g. MB Approval 229.51)

Other designations or recommendations that relate to a level of quality or a specification in accordance with an MB Approval have not necessarily been approved by Mercedes-Benz.

You can obtain further information from any Mercedes-Benz Service Centre.

Risk of injury

When handling, storing and disposing of any service products, please observe the relevant regulations, as you could otherwise endanger yourself and others.

Keep service products away from children.

To protect your health, do not allow service products to come into contact with your eyes or open wounds. See a doctor immediately if any service product is swallowed.

	Environmental note
Dispose of service products in an environmentally-responsible manner.

Fuels

Risk of explosion

Fuel is highly flammable. Fire, naked flames and smoking are therefore prohibited when handling fuels.

Switch off the engine and the auxiliary heating* before refuelling.

Risk of injury

Do not allow fuel to come into contact with skin or clothing.

Allowing fuels to come into direct contact with your skin or inhaling fuel vapours is damaging to your health.

Tank capacity

Total capacity	62 l
Of which reserve fuel	Approximately 8 l
CLK 63 AMG	Approximately 12 l


Do not use petrol to refuel vehicles with a diesel engine. Do not use diesel to refuel vehicles with a petrol engine. Never mix diesel with petrol. Even small amounts of the wrong fuel result in damage to the injection system. Damage caused by adding the wrong fuel is not covered by the warranty.

More information about refuelling and fuels can be found in the "Operation" section.

Introduction, fuel consumption

The vehicle will use more fuel than usual in the following situations:

at very low temperatures
in urban traffic
on short trips
when towing a trailer
in mountainous terrain

The consumption figures were determined in accordance with EU Directive 80/1268/EEC under the following test conditions:

Urban driving conditions are simulated by frequent pulling away and stopping.
Common extra-urban driving conditions are simulated by accelerating from 0 to 120 km/h using all gears.
Overall fuel consumption is calculated using a weighting of approximately 37% for urban driving and approximately 63% for extra-urban driving.

Mercedes-Benz is constantly updating its vehicles to the state of the art. This means the current consumption figures may be lower than the ones listed here. The current consumption values may be found in the COC documents (EC CERTIFICATE OF CONFORMITY). These documents are supplied when the vehicle is delivered.


Do not use fuel additives, since they can lead to increased wear and damage to the engine. If you use special fuel additives this will limit your warranty entitlement.

Environmental note

CO ₂ (carbon dioxide) is the gas which scientists believe to be principally responsible for global warming (the greenhouse effect). Your vehicle's CO ₂ emissions are directly related to fuel consumption and therefore depend on:

efficient use of the fuel by the engine
driving style
other non-technical factors, such as environmental influences or road conditions

You can minimise your vehicle's CO ₂ emissions by driving carefully and having it serviced regularly.

Fuel consumption

The information does not refer to a single vehicle, but is to be used to compare the different vehicle types.

Manual transmission		CLK 200 KOMPRESSOR	CLK 280	CLK 220 CDI	CLK 320 CDI
Urban	Coupé	11.9 12.2 l/100 km	13.3 13.7 l/100 km	8.6 8.8 l/100 km	9.7 10.0 l/100 km
Urban	Cabriolet	12.2 12.4 l/100 km	13.8 14.2 l/100 km	—	9.7 10.0 l/100 km
Extra-urban	Coupé	6.2 6.7 l/100 km	6.8 7.2 l/100 km	5.1 5.2 l/100 km	5.6 5.7 l/100 km
Extra-urban	Cabriolet	6.5 6.8 l/100 km	7.0 7.4 l/100 km	—	5.6 5.7 l/100 km
Overall (NEDC)	Coupé	8.3 8.7 l/100 km	9.2 9.6 l/100 km	6.4 6.5 l/100 km	6.9 7.3 l/100 km
Overall (NEDC)	Cabriolet	8.6 8.9 l/100 km	9.5 9.9 l/100 km	—	7.1 7.3 l/100 km
CO₂ emissions	Coupé	198 207 g/km	220 229 g/km	169 172 g/km	188 194 g/km
CO₂ emissions	Cabriolet	205 212 g/km	227 236 g/km	—	188 194 g/km

Automatic transmission*		CLK 200 KOMPRESSOR	CLK 280	CLK 350	CLK 500
Urban	Coupé	12.1 12.6 l/100 km	13.2 13.5 l/100 km	14.3 14.4 l/100 km	16.7 16.8 l/100 km
Urban	Cabriolet	12.6 12.8 l/100 km	13.3 13.6 l/100 km	14.5 14.6 l/100 km	17.1 17.2 l/100 km
Extra-urban	Coupé	6.2 6.5 l/100 km	6.9 7.2 l/100 km	7.3 7.4 l/100 km	8.3 8.4 l/100 km
Extra-urban	Cabriolet	6.5 6.8 l/100 km	7.0 7.3 l/100 km	7.6 7.7 l/100 km	8.5 8.6 l/100 km
Overall (NEDC)	Coupé	8.4 8.7 l/100 km	9.2 9.5 l/100 km	9.9 10.0 l/100 km	11.4 11.5 l/100 km
Overall (NEDC)	Cabriolet	8.7 9.0 l/100 km	9.3 9.6 l/100 km	10.1 10.2 l/100 km	11.6 11.7 l/100 km
CO₂ emissions	Coupé	200 207 g/km	220 227 g/km	237 239 g/km	270 273 g/km
CO₂ emissions	Cabriolet	207 214 g/km	222 229 g/km	241 244 g/km	275 278 g/km

Automatic transmission*		CLK 63 AMG	CLK 220 CDI (Engine version with diesel particle filter*. Standard equipment in some countries.)	CLK 220 CDI	CLK 320 CDI
Urban	Coupé	21.3 l/100 km	9.1 9.2 l/100 km	9.0 9.2 l/100 km	9.9 10.3 l/100 km
Urban	Cabriolet	21.6 l/100 km	—	—	9.9 10.3 l/100 km
Extra-urban	Coupé	10.0 l/100 km	5.6 5.7 l/100 km	5.4 5.5 l/100 km	6.0 6.2 l/100 km
Extra-urban	Cabriolet	10.2 l/100 km	—	—	6.0 6.2 l/100 km
Overall (NEDC)	Coupé	14.2 l/100 km	6.8 6.9 l/100 km	6.8 6.9 l/100 km	7.4 7.7 l/100 km
Overall (NEDC)	Cabriolet	14.4 l/100 km	—	—	7.4 7.7 l/100 km
CO₂ emissions	Coupé	338 g/km	180 183 g/km	178 181 g/km	197 205 g/km
CO₂ emissions	Cabriolet	344 g/km	—	—	197 205 g/km

Engine oil

A list of engine oils tested and approved in accordance with the Mercedes-Benz Specifications for Service Products is available from any Mercedes-Benz Service Centre. Approval by Mercedes-Benz is also often indicated with the MB sheet number on the oil container. The table shows which MB sheet number applies to which engine:

CLK 200 KOMPRESSOR

CLK 280

CLK 350

CLK 500

CLK 55 AMG

MB sheet number

229.3/229.31/229.5/
229.51

229.1/229.3/229.5

229.5

(Restriction: only SAE XW-40 engine oils may be used.)

With a diesel particle filter

CLK 220 CDI

CLK 320 CDI

MB sheet number

228.51/229.31/229.51

Without a diesel particle filter

(Only for certain countries.)

CLK 220 CDI

CLK 320 CDI

MB sheet number

228.3/228.5/228.51

229.3/229.31/

229.5/229.51

228.3/228.5/228.51

229.3/229.31/

229.5/229.51

In the unusual event that the

engine oil brand
grade (MB sheet number)
SAE classification (viscosity)

corresponding to the oil used in your engine is not available, you can use another mineral or synthetic engine oil approved by Mercedes-Benz.

Mixing oils reduces the advantages of high-grade engine oil.


Do not use lubricant additives, since they lead to increased wear and damage to the mechanical assemblies. The use of lubricant additives limits warranty claims.


Engine oils for vehicles without a diesel particle filter may also be used temporarily in vehicles with a diesel particle filter if the engine oil listed is not available. You must then have an oil change carried out as soon as possible.

Capacities

The following values indicate the various total engine capacities.

Engine with oil filter

CLK 200 KOMPRESSOR

CLK 280

CLK 350

CLK 63 AMG

CLK 220 CDI

CLK 320 CDI

CLK 500

Replacement amount

5.5 l

8.0 l

8.8 l

6.5 l

8.5 l

Engine oil viscosity

Viscosity describes the flow characteristics of a fluid. If an engine oil has a high viscosity, it means that it is thick; a low viscosity means that it is thin.

Select the SAE classification (viscosity) of the engine oil according to the outside temperature. The following table shows you the viscosity classes to be used depending on the average air temperature.

Transmission oil

You can use any passenger vehicle transmission oil that has been tested and approved for Mercedes-Benz vehicles according to Sheet 231.1 of the Mercedes-Benz Specifications for Service Products. The sheet is available in every Mercedes-Benz Service Centre.


Do not use lubricant additives, since they lead to increased wear and damage to the mechanical assemblies. The use of lubricant additives limits warranty claims.

Coolant

The coolant is a mixture of water and antifreeze/corrosion inhibitor. It performs the following tasks:

Anti-corrosion protection
Antifreeze protection
Raising the boiling point


When the vehicle is first delivered, it is topped up with a coolant that will ensure adequate antifreeze and corrosion protection.

Only top up with coolant that has been premixed with the desired quantity of antifreeze protection.

You could otherwise damage the engine. There is more information about coolant and topping it up on Mercedes-Benz Specifications for Service Products Sheet 310.1.

Always use a suitable coolant mixture, even in countries where high temperatures prevail.

Otherwise, the cooling system will not be sufficiently protected from corrosion, and the boiling point will be too low.

If antifreeze/corrosion inhibitor is present in the correct concentration, the boiling point of the coolant will be around 130 °C.

The antifreeze/corrosion inhibitor concentration in the cooling system should:

be at least 50%. This will protect the cooling system against freezing down to around -37 °C.
not exceed 55% (antifreeze protection down to -45 °C), otherwise heat will not be effectively dissipated.

If the vehicle is losing coolant, top it up with equal amounts of water and antifreeze/corrosion inhibitor. Mercedes-Benz recommends an antifreeze/corrosion inhibitor which has been approved for Mercedes-Benz.

The cooling system contains a lifetime supply which must be renewed after 15 years, or after 250, 000 km at the latest. Have the renewal confirmed in the Service Booklet.

The lifetime warranty is only valid if you top up with an antifreeze/corrosion inhibitor which has been approved by Mercedes-Benz.

Capacities

The following values indicate the total cooling system capacities.

	CLK 200 KOMPRESSOR	CLK 200 KOMPRESSOR (Only in some countries.)	CLK 280	CLK 350	CLK 500	CLK 63 AMG	CLK 220 CDI	CLK 320 CDI
Coolant	5.6 l	8.0 l	7.1 l	7.1 l	7.6 l	10.9 l	7.5 l	7.6 l
Amount of antifreeze/corrosion inhibitor required for antifreeze protection
Down to -37 °C (approximately 50%)	2.8 l	4.0 l	3.55 l	3.55 l	3.8 l	5.5 l	3.75 l	3.8 l
Down to -45 °C (approximately 55%)	3.1 l	4.4 l	3.9 l	3.9 l	4.2 l	6.0 l	4.13 l	4.2 l

Brake fluid

Over a period of time, the brake fluid absorbs moisture from the air; this lowers its boiling point.

Risk of accident

If the boiling point of the brake fluid is too low, vapour pockets may form in the brake system when the brakes are applied hard (e.g. when driving downhill). This would impair braking efficiency.

Have the brake fluid renewed every two years with a brake fluid that has been approved by Mercedes-Benz and have this confirmed in the Service Booklet.


There is usually a notice in the engine compartment to remind you when the next brake fluid change is due.

Windscreen washer system

The washer fluid reservoir holds approximately 3 litres. On vehicles with a headlamp cleaning system*, it holds 6 litres.

The headlamp cleaning system* and the windscreen washer system are both supplied from the washer fluid reservoir.

	At temperatures above freezing point: Top up the washer fluid reservoir with a mixture of water and windscreen washer concentrate more.
	At temperatures below freezing point: Top up the washer fluid reservoir with a mixture of water, antifreeze and windscreen washer concentrate more. Adapt the mixing ratio to the outside temperatures.

	Risk of fire
Windscreen washer concentrate is highly flammable. Fire, naked flames and smoking are prohibited when windscreen washer concentrate is being handled.