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CarMonitor

Transport Canada + NRCan

2021 Mercedes Benz CLS 450

Everything Canada’s open data holds on this vehicle: what has been recalled, what it costs to run, and how efficient it is compared with everything else on the road.

Recalls

13

13 current

Combined

9.4L/100 km

Fuel, a year

$2,914

20,000 km, Ontario prices

Recalls

Good news: Recall repairs cost you nothing. Book with any manufacturer dealer and quote the recall number — no time limit, however many owners the vehicle has had.

Electrical

Transport Canada recall 2024342 · manufacturer campaign 1595003/1595004

14 June 2024

Transport Canada lists: Class 2019–2022 · CLS 2019–2022 · E 2019–2022

What is wrong

On certain vehicles, the recall repairs completed by a Mercedes-Benz dealer during recall 5491309 (Transport Canada recall no. 2022-397) may not have been done correctly. As a result, a second repair is required. On certain vehicles equipped with 4-wheel drive (4Matic), the transmission wiring harness may not be routed correctly. As a result, water could enter the wiring harness connector and cause a short circuit. Note: This recall replaces Transport Canada recall no. 2022-397.

Why it matters

A short circuit can create the risk of a fire, even while the vehicle is parked and turned off.

What the dealer will do

Mercedes-Benz will notify owners by mail and advise you to take your vehicle to a dealership to replace the transmission wiring harness.

2,691 vehicles affected in CanadaCarSafety Mfr

Electrical

Transport Canada recall 2024081 · manufacturer campaign 5491318

9 February 2024

Transport Canada lists: Amg 2021–2023 · CLS 2021–2023 · E 2021–2023

What is wrong

On certain vehicles, the bolt for the 48 V ground connection may not have been tightened properly. As a result, the wiring could overheat and melt.

Why it matters

Wiring that overheats and melts can create the risk of a fire.

What the dealer will do

Mercedes-Benz will notify owners by mail and advise you to take your vehicle to a dealership to inspect and, if necessary, tighten the ground connection.

1,784 vehicles affected in CanadaCarSafety Mfr

Fuel System

Transport Canada recall 2023672 · manufacturer campaign 4790205

15 December 2023

Transport Canada lists: Amg 2021–2024 · C 2021–2024 · Class 2021–2024 · CLS 2021–2024 · and 8 more

What is wrong

On certain vehicles, the fuel delivery module could fail. If this happens, the engine may run rough or may not start. This could also result in a sudden loss of engine power while driving. Note: This is an expansion of Transport Canada recall 2023-353.

Why it matters

A sudden loss of engine power could increase the risk of a crash.

What the dealer will do

Mercedes-Benz will notify owners by mail and advise you to take your vehicle to a dealership to replace the fuel delivery module.

7,531 vehicles affected in CanadaSUVSafety Mfr

Fuel System

Transport Canada recall 2023353 · manufacturer campaign 4790205 / 4790206 / 4790207

23 June 2023

Transport Canada lists: Amg 2021–2023 · C 2021–2023 · Class 2021–2023 · CLS 2021–2023 · and 9 more

What is wrong

On certain vehicles, the fuel delivery module could fail. If this happens, the engine may run rough or may not start. This could also result in a sudden loss of engine power while driving.

Why it matters

A sudden loss of engine power could increase the risk of a crash.

What the dealer will do

Mercedes-Benz will notify owners by mail and advise you to take your vehicle to a dealership to replace the fuel delivery module.

18,461 vehicles affected in CanadaLight Truck & VanSafety Mfr

Electrical

Transport Canada recall 2022547 · manufacturer campaign 5490204

29 September 2022

Transport Canada lists: CLS 2019–2022 · E 2019–2022

What is wrong

On certain vehicles, the 12 V battery (in the trunk) could move in a crash. As a result, the battery electrical connexions could detach. If this happens, the post-crash safety systems (like the emergency calling (eCall) system, electric seat adjustment, hazard warning lights, and automatic door unlocking) may not work.

Why it matters

Safety systems that don't work correctly could increase the risk of injury.

What the dealer will do

Mercedes-Benz will notify owners by mail and instruct you to take your vehicle to a dealership to add a bracket to better secure the battery.

2,630 vehicles affected in CanadaCarSafety Mfr

Electrical

Transport Canada recall 2022397 · manufacturer campaign 5491309

22 July 2022

Transport Canada lists: Amg 2019–2022 · CLS 2019–2022 · E 2019–2022

What is wrong

On certain vehicles equipped with 4-wheel drive (4Matic), the transmission wiring harness might not be routed correctly. As a result, water could enter the wiring harness connector and cause a short circuit.

Why it matters

A short circuit can create the risk of a fire, even while the vehicle is parked and turned off.

What the dealer will do

Mercedes-Benz will notify owners by mail and instruct you to take your vehicle to a dealership to inspect the connector on the transmission wiring harness, and repair it if necessary. Additionally, the dealer will install a bracket to improve the routing of the transmission wiring harness.

2,747 vehicles affected in CanadaCarSafety Mfr

Other

Transport Canada recall 2022263 · manufacturer campaign 5498816

20 May 2022

Transport Canada lists: A 2019–2022 · Amg 2019–2022 · Cla 2019–2022 · Class 2019–2022 · and 10 more

What is wrong

On certain vehicles equipped with the emergency calling (eCall) system, the SIM card for the communications module could disable itself. If this happens, the eCall system would not work properly when there is a crash or when the SOS button is pressed.

Why it matters

If the eCall system does not work in an emergency situation, there could be a delay in response from emergency services.

What the dealer will do

Mercedes-Benz will notify owners by mail and send a wireless over-the-air software update to each vehicle. If the update cannot be completed successfully, you will be notified to schedule an appointment to have the update performed by a dealer.

49,728 vehicles affected in CanadaCarSafety Mfr

Accessories

Transport Canada recall 2022140 · manufacturer campaign 5496315

25 March 2022

Transport Canada lists: Class 2021–2022 · CLS 2021–2022 · E 2021–2022 · Eqs 2021–2022 · and 1 more

What is wrong

On certain vehicles, the DISTRONIC driver assistance system might not detect when the driver removes their hands from the steering wheel. If the driver has a medical emergency (and is unable to drive or loses consciousness), the active emergency stop assist and emergency call functions would not activate. Note: This recall only affects vehicles equipped with a heated leather steering wheel.

Why it matters

If the active emergency stop and emergency call features do not work in an emergency situation, there could be an increased risk of a crash, and there could be a delay in response from emergency services.

What the dealer will do

Mercedes-Benz will notify owners by mail and instruct you to take your vehicle to a dealership to update the software for the hand detection system.

1,815 vehicles affected in CanadaCarSafety Mfr

Seats And Restraints

Transport Canada recall 2021493 · manufacturer campaign 9290006

6 August 2021

Transport Canada lists: Class 2021 · CLS 2021 · E 2021 · G 2021

What is wrong

On certain vehicles, the passenger seat belt assemblies may contain defective automatic locking retractors (ALR). As a result, the seat belts may not properly lock to secure a child seat. Note: The vehicle's lower universal anchorage system (UAS) is not affected by this defect and may still be used to secure a child seat.

Why it matters

A seat belt that is used to secure a child restraint but is not properly locked could increase the risk of injury in a crash.

What the dealer will do

Mercedes-Benz will notify owners by mail and instruct you to take your vehicle to a dealer to inspect the seat belts. They will be replaced, if necessary.

361 vehicles affected in CanadaCarCompliance Mfr

Visual System

Transport Canada recall 2021291 · manufacturer campaign 5497425

14 May 2021

Transport Canada lists: A 2018–2021 · Cla 2018–2021 · Class 2018–2021 · CLS 2018–2021 · and 6 more

What is wrong

On certain vehicles, a software problem could cause the rearview camera image not to appear on the central display. Canadian regulations require the rearview image to display when the transmission is shifted into reverse gear.

Why it matters

A rearview camera image that does not display could reduce a driver's ability to see behind the vehicle while backing up. This could increase the risk of a crash.

What the dealer will do

Mercedes-Benz will notify owners by mail and send a wireless over-the-air software update to each vehicle. If the update cannot be completed successfully, you will be notified to schedule an appointment to have the update performed by a dealer.

40,646 vehicles affected in CanadaSUVSafety Mfr

Airbag

Transport Canada recall 2021207 · manufacturer campaign 9190207

7 April 2021

Transport Canada lists: C 2021 · Class 2021 · CLS 2021 · E 2021 · and 2 more

What is wrong

On certain vehicles, there may be a problem with the front seat position switches. As a result, the airbags and seat belt force limiters may not work properly in a crash.

Why it matters

Airbags or seat belts that do not work properly could create an increased risk of injury in a crash.

What the dealer will do

Mercedes-Benz will notify owners by mail and instruct you to take your vehicle to a dealer to replace the seat position switches.

1,082 vehicles affected in CanadaCarSafety Mfr

Electrical

Transport Canada recall 2021064

12 February 2021

Transport Canada lists: A 2019–2021 · B 2019–2021 · C 2019–2021 · Cla 2019–2021 · and 11 more

What is wrong

On certain vehicles equipped with the emergency calling (eCall) system, the communications module may temporarily lose power during a crash. If this happens, the wrong vehicle location may be transmitted through the eCall system. This could cause emergency responders to be sent to the wrong location.

Why it matters

If the eCall system sends out the wrong location after a crash, there could be a delay in response from emergency services.

What the dealer will do

Mercedes-Benz will notify owners by mail and send a wireless over-the-air update to each vehicle. If the update cannot be completed successfully, you will be notified to schedule an appointment to have the update performed by a dealer.

75,231 vehicles affected in CanadaSUVSafety Mfr

Accessories

Transport Canada recall 2021041 · manufacturer campaign 5499615

1 February 2021

Transport Canada lists: B 2018–2021 · C 2018–2021 · Cla 2018–2021 · Class 2018–2021 · and 9 more

What is wrong

On certain vehicles, a software problem could cause the rearview camera image not to appear on the central display. Canadian regulations require the rearview image to display when the transmission is shifted into reverse gear.

Why it matters

A rearview camera image that does not display could reduce a driver's ability to see behind the vehicle while backing up. This could increase the risk of a crash.

What the dealer will do

Mercedes-Benz will notify owners by mail and instruct you to take your vehicle to a dealer to update the head unit software.

41,731 vehicles affected in CanadaSUVSafety Mfr

Efficiency and running cost

Class
Compact
In its class
More efficient than 36% of 92 2021 vehicles in this class
Tailpipe CO₂
222 g/km

Set your own distance and pump price · Full efficiency ranking

Watch this vehicle

Recall letters go to whoever owns the car on paper, which may not be you. Save your 2021 Mercedes Benz CLS 450 and we will email you the day Transport Canada issues a new recall for it.

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Common questions

Does the 2021 Mercedes Benz CLS 450 have any recalls?
Transport Canada has 13 recalls on record for the 2021 Mercedes Benz CLS 450. Recall repairs are free at any manufacturer dealer.
What fuel economy does the 2021 Mercedes Benz CLS 450 get?
NRCan rates the 2021 Mercedes Benz CLS 450 at 9.4 L/100 km combined, emitting 222 g of CO2 per kilometre.
What does it cost to run a 2021 Mercedes Benz CLS 450 for a year?
At 20,000 km a year and Ontario average prices, about $2,914 in fuel, producing roughly 4,343 kg of CO2. Your own distance and prices will change this — the calculator lets you set both.

Source: Transport Canada — Vehicle Recalls Database; NRCan — Fuel consumption ratings. Data current as of 30 July 2026. Running cost uses Ontario average prices (155 ¢/L, 14.5 ¢/kWh), which are hand-maintained estimates. 30,784 rated vehicles on file.