2700100068 Crankshaft Seal for C300 GLC300 E300 CLA250 GLA250 GLB250 2.0L

1. Product Details

• Product Name: Crankshaft Shaft Seal (Rear Crankshaft Oil Seal)

• OEM Number: 270 010 0068 (also A2700100068, A270 010 00 68)

• Product Highlight: OEM-grade rear crankshaft seal engineered to prevent engine oil leakage between the crankshaft and transmission – a critical component that protects the engine's lubrication system and prevents costly oil contamination of clutch/flywheel components.

• Dimensions: Inner Diameter: 93mm; Outer Diameter: 133mm; Height: 10.5mm

• OEM Standard: Manufactured to Mercedes-Benz original equipment specifications; meets strict German automotive quality standards for material composition and sealing performance.

• Vehicle Adaptability: Compatible with Mercedes-Benz models equipped with M270, M274, M260, M264 series 4-cylinder petrol engines.

• Make: Mercedes-Benz

• Model Years: 2012–2023 (model-specific coverage detailed in Section 4)

• Applicable Models: A-Class (W176/W177), B-Class (W246/W247), C-Class (W205), CLA (C117/C118), GLA (X156/H247), and others with 2.0L turbo petrol engines.

• Quality: Premium FPM (fluoride rubber) construction with flange design; offers superior resistance to high temperatures and engine oils; manufacturer-grade reliability.

Details Images

2. Product Parameters

3. Product Features

• Leak-Proof Sealing: Precision-engineered lip seal prevents engine oil from escaping the rear crankshaft journal, protecting the transmission input shaft and clutch from oil contamination.

• Heat & Chemical Resistant: FPM rubber compound withstands extreme engine temperatures, oil additives, and thermal cycling without hardening or cracking.

• OEM Direct Fit: Matches factory dimensions and flange design exactly – installs with provided mounting sleeves for proper alignment.

• Prevents Major Engine Damage: A failed rear main seal can lead to rapid oil loss, engine damage, and expensive transmission removal for replacement. Early replacement ensures long-term engine health.

• Premium Quality Construction: Manufactured to meet or exceed Mercedes-Benz original equipment specifications.

4. Vehicle Fitment (Applicable Models & Years)

This crankshaft seal fits Mercedes-Benz vehicles with the following engines:

Verify your vehicle's engine code and VIN before ordering.

Company Profile

Founded in 2018, Guangzhou Tonghua Auto Parts Co., Ltd. is located in Tanbu Town, known as the "Pearl of the Bajiang River", Huadu District, Guangzhou, at the junction of Guangzhou and Foshan, with convenient geographical and transportation advantages. We are a large modern enterprise integrating the wholesale base, wholesale sales and import and export trade of domestic high-end auto parts and whole vehicle parts, covering an area of more than 10000 square meters and more than 150 employees. We have a well-known independent parts brand "lthjt", covering Toyota, Honda, Mercedes Benz, BMW, Land Rover, Jaguar, Volkswagen, Audi and Porsche.

5. Frequently Asked Questions (FAQ)

Q1: What symptoms indicate my crankshaft seal needs replacement?
Common signs include visible oil leaks between the engine and transmission bell housing, oil drops on the garage floor under the engine/transmission join, low engine oil levels without other leaks, or a burning oil smell from the exhaust. In manual transmission vehicles, oil contamination may cause clutch slipping.

Q2: Is this seal compatible with both petrol and diesel engines?
This seal (270 010 0068) is designed specifically for M270, M274, M260, and M264 series petrol engines. Diesel variants use a different part number. Always confirm your engine code before purchase.

Q3: Can I replace the crankshaft seal without removing the transmission?
No. The rear crankshaft seal is located between the engine and transmission, requiring transmission removal for access. This is a labor-intensive job – professional installation is strongly recommended to ensure proper alignment, correct torque, and to avoid seal damage during fitting.