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New Mercedes CLS Turbo – Ref. 826830-5004S

€694,00 incl. VAT
i.e. €578,33 excl. VAT
TurboMercedes · CLSRef. 826830-5004S, 6420902486, 642090248680, A6420902486, A642090248680
12 months Parts warranty
4.8 805 Google reviews
  • 100% secure online payment
  • Delivery to your garage or home, anywhere in Europe
  • 12-month parts warranty
  • Reconditioned and checked turbo
Technical specifications
Part
Turbo
Part type
New turbo
Make
Mercedes
Model
CLS
Engine
CLS 350 BlueTEC/d, CLS 350 BlueTEC/d 4MATIC
Fuel
Diesel
Reference
826830-5004S, 6420902486, 642090248680, A6420902486, A642090248680
Warranty
12 months

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Why does the turbo fail on the Mercedes CLS 350 BlueTEC/d?

On the V6 3.0 Diesel OM642LS fitted to the Mercedes CLS 350 BlueTEC/d and its 4MATIC variant, the variable-geometry turbo is put under considerable strain during hard acceleration and long motorway runs at sustained speeds — both typical of how this saloon is used. Insufficient lubrication, degraded or non-approved engine oil, a clogged air filter or a faulty intercooler are the most common causes of premature wear to the turbine and bearings. Driving habits that involve sharp rev increases without allowing the turbo to warm up or cool down before switching off the engine also accelerate mechanical fatigue throughout the assembly.

New turbo compatible with reference 826830-5004S for this Mercedes CLS

This new turbo is compatible with reference 826830-5004S and fits the CLS 350 BlueTEC/d and CLS 350 BlueTEC/d 4MATIC, equipped with the 3.0 V6 Diesel engine (engine codes OM642LS, OM 642.852, OM 642.853, OM 642.858). Before placing an order, we recommend checking the exact reference marked on the old turbo once removed, as production variants can coexist within the same model.

Equivalent references

  • 6420902486
  • 642090248680
  • 826830-5004S
  • A6420902486
  • A642090248680

Exchange basis and warranty

This new turbo is sold on an exchange basis: return of the old turbo is required, in accordance with our Terms and Conditions. It is only collected after the new turbo has been delivered and fitted, so the CLS is not left off the road. The part carries a 12-month parts warranty, subject to fitting by a qualified professional. Payment can be spread over several instalments, in up to 10 instalments.

Fitting advice for the CLS 350 BlueTEC turbo

Before fitting to the V6 OM642LS, check the oil circuit (feed and return lines), the condition of the air hoses and the cleanliness of the air intake upstream of the turbo. Prime the turbo with oil before the first start to ensure immediate lubrication of the bearings. Also check the intercooler and replace the air filter if necessary — both are essential steps to protect the longevity of the new turbo on this engine.

  • Check the oil circuit and ensure it is clean before fitting
  • Inspect the hoses and air intake
  • Prime with oil before starting
  • Observe oil change intervals using an approved oil

This same turbo also fits

Why does the turbo fail on the Mercedes CLS 350 BlueTEC/d?

On the V6 3.0 Diesel OM642LS fitted to the Mercedes CLS 350 BlueTEC/d and its 4MATIC variant, the variable-geometry turbo is put under considerable strain during hard acceleration and long motorway runs at sustained speeds — both typical of how this saloon is used. Insufficient lubrication, degraded or non-approved engine oil, a clogged air filter or a faulty intercooler are the most common causes of premature wear to the turbine and bearings. Driving habits that involve sharp rev increases without allowing the turbo to warm up or cool down before switching off the engine also accelerate mechanical fatigue throughout the assembly.

New turbo compatible with reference 826830-5004S for this Mercedes CLS

This new turbo is compatible with reference 826830-5004S and fits the CLS 350 BlueTEC/d and CLS 350 BlueTEC/d 4MATIC, equipped with the 3.0 V6 Diesel engine (engine codes OM642LS, OM 642.852, OM 642.853, OM 642.858). Before placing an order, we recommend checking the exact reference marked on the old turbo once removed, as production variants can coexist within the same model.

Equivalent references

  • 6420902486
  • 642090248680
  • 826830-5004S
  • A6420902486
  • A642090248680

Exchange basis and warranty

This new turbo is sold on an exchange basis: return of the old turbo is required, in accordance with our Terms and Conditions. It is only collected after the new turbo has been delivered and fitted, so the CLS is not left off the road. The part carries a 12-month parts warranty, subject to fitting by a qualified professional. Payment can be spread over several instalments, in up to 10 instalments.

Fitting advice for the CLS 350 BlueTEC turbo

Before fitting to the V6 OM642LS, check the oil circuit (feed and return lines), the condition of the air hoses and the cleanliness of the air intake upstream of the turbo. Prime the turbo with oil before the first start to ensure immediate lubrication of the bearings. Also check the intercooler and replace the air filter if necessary — both are essential steps to protect the longevity of the new turbo on this engine.

  • Check the oil circuit and ensure it is clean before fitting
  • Inspect the hoses and air intake
  • Prime with oil before starting
  • Observe oil change intervals using an approved oil

This same turbo also fits

FAQ

Frequently asked questions

Everything you need to know before ordering your part.

This new turbo is compatible with reference 826830-5004S for the CLS 350 BlueTEC/d and 350 BlueTEC/d 4MATIC fitted with the V6 3.0 Diesel OM642LS. We recommend checking the reference on the old turbo before ordering.
Yes, this is sold on an exchange basis and return of the old turbo is required, in accordance with our Terms and Conditions. It is only collected after the new turbo has been delivered and fitted, so the vehicle is not left off the road.
The turbo carries a 12-month parts warranty, subject to fitting by a qualified professional.
Loss of power, abnormal exhaust smoke, an unusual whistling noise or excessive oil consumption can all indicate turbo wear on this V6 Diesel.
Yes, you can pay in up to 10 instalments.
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